Remove a warning in 9nfs and make it use the std. CFLAGS
(we detected the warning using -W).

Reference: /n/sources/patch/applied/nfswarnandflags
Date: Thu Apr  4 17:49:20 CES 2013
Signed-off-by: nemo@lsub.org

--- /sys/src/cmd/9nfs/fns.h	Thu Apr  4 17:48:28 2013
+++ /sys/src/cmd/9nfs/fns.h	Thu Apr  4 17:48:26 2013
@@ -39,7 +39,7 @@
 void	srvinit(int, char*, char*);
 char*	strfind(char*);
 int	string2S(void*, String*);
-int	strparse(void*, int, char**);
+int	strparse(char*, int, char**);
 void	strprint(int);
 char*	strstore(char*);
 Waitmsg	*system(char*, char**);
--- /sys/src/cmd/9nfs/mkfile	Thu Apr  4 17:48:32 2013
+++ /sys/src/cmd/9nfs/mkfile	Thu Apr  4 17:48:30 2013
@@ -1,5 +1,4 @@
 </$objtype/mkfile
-CFLAGS=-FVw
 
 TARG=nfsserver\
 	portmapper\