improve language (#3662)

* improve language

* feedback

Author: mairaw

xml/System.Data.Metadata.Edm/ObjectItemCollection.xml

@@ -274,11 +274,11 @@
         <Parameter Name="clrType" Type="System.Type" RefType="out" Index="1" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8" />
       </Parameters>
       <Docs>
-        <param name="objectSpaceType">The OSpace enum type to look up</param>
-        <param name="clrType">The CLR enum type of the OSpace argument</param>
-        <summary>Returns the underlying CLR type for the specified OSpace enum type argument. If the DataSpace of the parameter is not OSpace, the method returns false and sets the out parameter to null.</summary>
+        <param name="objectSpaceType">The OSpace enum type to look up.</param>
+        <param name="clrType">When this method returns, contains the CLR enum type of the OSpace argument.</param>
+        <summary>Returns the underlying CLR type for the specified OSpace enum type argument.</summary>
         <returns>
-          <see langword="true" /> on success, false on failure</returns>
+          <see langword="true" /> if the CLR type can be obtained; otherwise, <see langword="false" />. If the DataSpace property of the parameter is not <see cref="F:System.Data.Metadata.Edm.DataSpace.OSpace" />, the method returns <see langword="false" /> and sets the <paramref name="clrType" /> parameter to <see langword="null" />.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -304,10 +304,9 @@
       </Parameters>
       <Docs>
         <param name="objectSpaceType">A <see cref="T:System.Data.Metadata.Edm.StructuralType" /> that represents the object space type.</param>
-        <param name="clrType">The CLR type.</param>
-        <summary>Returns a CLR type corresponding to the <see cref="T:System.Data.Metadata.Edm.StructuralType" /> supplied by the objectSpaceType parameter.</summary>
+        <param name="clrType">When this method returns, contains the CLR enum type of the OSpace argument.</param>
         <returns>
-          <see langword="true" /> if there is a type that matches the search criteria; otherwise, <see langword="false" />.</returns>
+          <see langword="true" /> if the CLR type can be obtained; otherwise, <see langword="false" />. If the DataSpace property of the parameter is not <see cref="F:System.Data.Metadata.Edm.DataSpace.OSpace" />, the method returns <see langword="false" /> and sets the <paramref name="clrType" /> parameter to <see langword="null" />.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>