efl/embryo: Keep room for the terminating '\0' we may add to the path.

If we go with PATH_MAX we could go out of bounds of this array. Not
going to happen that often really but better safe then sorry.

SVN revision: 80940

src/bin/embryo/embryo_cc_sc1.c

@@ -651,7 +651,7 @@ setopt(int argc, char **argv, char *iname, char *oname,
 static void
 setconfig(char *root)
 {
-   char                path[PATH_MAX];
+   char                path[PATH_MAX - 1];
    char               *ptr;
    int                 len;