contrib/gcclibs/libssp security warning

There's an unchecked syslog call inside of libssp/ssp.c 


/usr/src/gnu/lib/libssp/../../../contrib/gcclibs/libssp/ssp.c:137:23:
warning: format string is not a string literal (potentially insecure)
      [-Wformat-security]
    syslog (LOG_CRIT, msg1);
                      ^~~~
1 warning generated.
/usr/src/gnu/lib/libssp/../../../contrib/gcclibs/libssp/ssp.c:137:23:
warning: format string is not a string literal (potentially insecure)
      [-Wformat-security]
    syslog (LOG_CRIT, msg1);

I propose the following change:

Index: contrib/gcclibs/libssp/ssp.c
===================================================================
--- contrib/gcclibs/libssp/ssp.c        (revision 256712)
+++ contrib/gcclibs/libssp/ssp.c        (working copy)
 #ifdef HAVE_SYSLOG_H
   /* Only send the error to syslog if there was no tty available.  */
   else
-    syslog (LOG_CRIT, msg3);
+    syslog (LOG_CRIT, "%s", msg3);
 #endif /* HAVE_SYSLOG_H */