Update Process.Start exception info (#3427)

Author: nxtn

xml/System.Diagnostics/Process.xml

@@ -4917,7 +4917,11 @@ There is a similar issue when you read all text from both the standard output an
 
  ]]></format>
         </remarks>
-        <exception cref="T:System.ComponentModel.Win32Exception">An error occurred when opening the associated file.</exception>
+        <exception cref="T:System.ComponentModel.Win32Exception">An error occurred when opening the associated file.
+
+-or-
+
+The file specified in the <paramref name="fileName" /> could not be found.</exception>
         <exception cref="T:System.ObjectDisposedException">The process object has already been disposed.</exception>
         <exception cref="T:System.IO.FileNotFoundException">The PATH environment variable has a string containing quotes.</exception>
         <permission cref="F:System.Security.Permissions.SecurityAction.LinkDemand">for full trust for the immediate caller. This member cannot be used by partially trusted code.</permission>
@@ -5002,6 +5006,10 @@ There is a similar issue when you read all text from both the standard output an
         </remarks>
         <exception cref="T:System.InvalidOperationException">The <paramref name="fileName" /> or <paramref name="arguments" /> parameter is <see langword="null" />.</exception>
         <exception cref="T:System.ComponentModel.Win32Exception">An error occurred when opening the associated file.  
+
+-or-
+
+The file specified in the <paramref name="fileName" /> could not be found.
 
  -or-  
 
@@ -5093,7 +5101,11 @@ There is a similar issue when you read all text from both the standard output an
  ]]></format>
         </remarks>
         <exception cref="T:System.InvalidOperationException">No file name was specified.</exception>
-        <exception cref="T:System.ComponentModel.Win32Exception">There was an error in opening the associated file.</exception>
+        <exception cref="T:System.ComponentModel.Win32Exception">There was an error in opening the associated file.
+
+-or-
+
+The file specified in the <paramref name="fileName" /> could not be found.</exception>
         <exception cref="T:System.ObjectDisposedException">The process object has already been disposed.</exception>
         <exception cref="T:System.PlatformNotSupportedException">This member is not supported on Linux or macOS (.NET Core only).</exception>
         <permission cref="F:System.Security.Permissions.SecurityAction.LinkDemand">for full trust for the immediate caller. This member cannot be used by partially trusted code.</permission>
@@ -5171,6 +5183,10 @@ There is a similar issue when you read all text from both the standard output an
         </remarks>
         <exception cref="T:System.InvalidOperationException">No file name was specified.</exception>
         <exception cref="T:System.ComponentModel.Win32Exception">An error occurred when opening the associated file.  
+
+-or-
+
+The file specified in the <paramref name="fileName" /> could not be found.
 
  -or-