getflags fails with -f '%#x'.  use doquote=needsrcquote.

Reference: /n/sources/patch/applied/getflagshash
Date: Fri Dec 17 04:59:15 CET 2010
Signed-off-by: quanstro@quanstro.net

--- /sys/src/cmd/aux/getflags.c	Fri Dec 17 04:58:40 2010
+++ /sys/src/cmd/aux/getflags.c	Fri Dec 17 04:58:38 2010
@@ -43,6 +43,7 @@
 	int i, n;
 	Fmt fmt;
 	
+	doquote = needsrcquote;
 	quotefmtinstall();
 	argv0 = argv[0];	/* for sysfatal */