--- mono-2.11.4/scripts/mono-find-requires.in.old	2012-09-29 23:20:34.968693110 +0200
+++ mono-2.11.4/scripts/mono-find-requires.in	2012-09-29 23:20:11.525486763 +0200
@@ -187,4 +187,4 @@ $REQUIRES" | sort | uniq -u)
 # Of those, only choose the ones that are in REQUIRES
 #
 echo "$UNIQ
-$REQUIRES" | sort | uniq -d
+$REQUIRES" | sort | uniq -d | sed 's/[ \t]*$//;/^$/d'