arg.h: fixed argv checks order - geomyidae - A small C-based gopherd.
 (HTM) git clone git://bitreich.org/geomyidae/ git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/geomyidae/
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       ---
 (DIR) commit b002d13b34f69f0efc797b252f9db0878262581d
 (DIR) parent d22ff2f488be69cd455837b5dfdff0aad1aea812
 (HTM) Author: Hiltjo Posthuma <hiltjo@codemadness.org>
       Date:   Sun, 11 Jun 2017 19:49:06 +0200
       
       arg.h: fixed argv checks order
       
       This prevents accessing to a potentially out-of-bounds memory section.
       
       Diffstat:
         M arg.h                               |       4 ++--
       
       1 file changed, 2 insertions(+), 2 deletions(-)
       ---
 (DIR) diff --git a/arg.h b/arg.h
       @@ -6,8 +6,8 @@
        extern char *argv0;
        
        #define ARGBEGIN        for(argv0 = *argv, argv++, argc--;\
       -                                        argv[0] && argv[0][1]\
       -                                        && argv[0][0] == '-';\
       +                                        argv[0] && argv[0][0] == '-'\
       +                                        && argv[0][1];\
                                                argc--, argv++) {\
                                        char _argc;\
                                        char **_argv;\