Updated.

svn path=/trunk/mono/; revision=128451

man/mcs.1

@@ -359,11 +359,15 @@ Debugging. Turns on verbose yacc parsing.
 Shows the compiler version.
 .TP
 .I \-warnaserror, \-warnaserror+
-Treat warnings as errors.
+All compilers warnings will be reported as errors.
 .TP
-.I \-warnaserror:W1,[Wn]
+.I \-warnaserror:W1,[Wn], -warnaserror+:W1,[Wn]
 Treats one or more compiler warnings as errors.
 .TP
+.I \-warnaserror-:W1,[Wn]
+Sets one or more compiler warnings to be always threated as warnings.
+Becomes useful when used together with -warnaserror.
+.TP
 .I \-warn:LEVEL
 Sets the warning level.  0 is the lowest warning level, and 4 is the
 highest.  The default is 4.