Fix Directory.EnumerateFiles documentation is misleading (#3408)

* update misleading method description

* update EnumerateFiles summary

Author: dsychin

xml/System.IO/Directory.xml

@@ -538,7 +538,7 @@ Directory::CreateDirectory("Public\\Html");
         <AssemblyVersion>4.1.0.0</AssemblyVersion>
       </AssemblyInfo>
       <Docs>
-        <summary>Returns an enumerable collection of directory names that meet specified criteria.</summary>
+        <summary>Returns an enumerable collection of directory full names that meet specified criteria.</summary>
       </Docs>
     </MemberGroup>
     <Member MemberName="EnumerateDirectories">
@@ -574,7 +574,7 @@ Directory::CreateDirectory("Public\\Html");
       </Parameters>
       <Docs>
         <param name="path">The relative or absolute path to the directory to search. This string is not case-sensitive.</param>
-        <summary>Returns an enumerable collection of directory names in a specified path.</summary>
+        <summary>Returns an enumerable collection of directory full names in a specified path.</summary>
         <returns>An enumerable collection of the full names (including paths) for the directories in the directory specified by <paramref name="path" />.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[  
@@ -644,7 +644,7 @@ Directory::CreateDirectory("Public\\Html");
       <Docs>
         <param name="path">The relative or absolute path to the directory to search. This string is not case-sensitive.</param>
         <param name="searchPattern">The search string to match against the names of directories in <paramref name="path" />.  This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.</param>
-        <summary>Returns an enumerable collection of directory names that match a search pattern in a specified path.</summary>
+        <summary>Returns an enumerable collection of directory full names that match a search pattern in a specified path.</summary>
         <returns>An enumerable collection of the full names (including paths) for the directories in the directory specified by <paramref name="path" /> and that match the specified search pattern.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[  
@@ -771,7 +771,7 @@ Directory::CreateDirectory("Public\\Html");
         <param name="searchOption">One of the enumeration values that specifies whether the search operation should include only the current directory or should include all subdirectories.  
 
  The default value is <see cref="F:System.IO.SearchOption.TopDirectoryOnly" />.</param>
-        <summary>Returns an enumerable collection of directory names that match a search pattern in a specified path, and optionally searches subdirectories.</summary>
+        <summary>Returns an enumerable collection of directory full names that match a search pattern in a specified path, and optionally searches subdirectories.</summary>
         <returns>An enumerable collection of the full names (including paths) for the directories in the directory specified by <paramref name="path" /> and that match the specified search pattern and option.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[  
@@ -834,7 +834,7 @@ Directory::CreateDirectory("Public\\Html");
         <AssemblyVersion>4.1.0.0</AssemblyVersion>
       </AssemblyInfo>
       <Docs>
-        <summary>Returns an enumerable collection of file names that meet specified criteria.</summary>
+        <summary>Returns an enumerable collection of full file names that meet specified criteria.</summary>
       </Docs>
     </MemberGroup>
     <Member MemberName="EnumerateFiles">
@@ -870,7 +870,7 @@ Directory::CreateDirectory("Public\\Html");
       </Parameters>
       <Docs>
         <param name="path">The relative or absolute path to the directory to search. This string is not case-sensitive.</param>
-        <summary>Returns an enumerable collection of file names in a specified path.</summary>
+        <summary>Returns an enumerable collection of full file names in a specified path.</summary>
         <returns>An enumerable collection of the full names (including paths) for the files in the directory specified by <paramref name="path" />.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[  
@@ -945,7 +945,7 @@ Directory::CreateDirectory("Public\\Html");
       <Docs>
         <param name="path">The relative or absolute path to the directory to search. This string is not case-sensitive.</param>
         <param name="searchPattern">The search string to match against the names of files in <paramref name="path" />.  This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.</param>
-        <summary>Returns an enumerable collection of file names that match a search pattern in a specified path.</summary>
+        <summary>Returns an enumerable collection of full file names that match a search pattern in a specified path.</summary>
         <returns>An enumerable collection of the full names (including paths) for the files in the directory specified by <paramref name="path" /> and that match the specified search pattern.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[  
@@ -1085,7 +1085,7 @@ Directory::CreateDirectory("Public\\Html");
         <param name="searchOption">One of the enumeration values that specifies whether the search operation should include only the current directory or should include all subdirectories.  
 
  The default value is <see cref="F:System.IO.SearchOption.TopDirectoryOnly" />.</param>
-        <summary>Returns an enumerable collection of file names that match a search pattern in a specified path, and optionally searches subdirectories.</summary>
+        <summary>Returns an enumerable collection of full file names that match a search pattern in a specified path, and optionally searches subdirectories.</summary>
         <returns>An enumerable collection of the full names (including paths) for the files in the directory specified by <paramref name="path" /> and that match the specified search pattern and option.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[