Index: gcc/opt-functions.awk
===================================================================
--- gcc/opt-functions.awk	(revision 194916)
+++ gcc/opt-functions.awk	(working copy)
@@ -62,9 +62,9 @@
 	if (flags !~ " " name "\\(")
 		return ""
 	sub(".* " name "\\(", "", flags)
-	if (flags ~ "^{")
+	if (flags ~ "^\\{")
 	{
-		sub ("^{", "", flags)
+		sub ("^\\{", "", flags)
 		sub("}\\).*", "", flags)
 	}
 	else