Fixed bad formatting

Author: Ron Petrusha

xml/System.Buffers/StandardFormat.xml

@@ -202,7 +202,7 @@ Two <xref:System.Buffers.StandardFormat> instances are equal if their <xref:Syst
       </ReturnValue>
       <Docs>
         <summary>Gets a value that indicates whether a format has a defined precision.</summary>
-        <value><see langword="true" /> if the format has a precision other than <see cref="F:System.Buffers.StandardFormat.NoPrecision" ?>; otherwise, <see langword="false" />.</value>
+        <value><see langword="true" /> if the format has a precision other than <see cref="F:System.Buffers.StandardFormat.NoPrecision" />; otherwise, <see langword="false" />.</value>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>