[hackers] [blind] Fix error in arg.h || Mattias Andrée

[git]

commit c5a6b2a07e7188d49260df56494b53d592f7764f
Author:     Mattias Andrée <maand...@kth.se>
AuthorDate: Wed Oct 18 19:04:54 2017 +0200
Commit:     Mattias Andrée <maand...@kth.se>
CommitDate: Wed Oct 18 19:04:54 2017 +0200

    Fix error in arg.h
    
    Signed-off-by: Mattias Andrée <maand...@kth.se>

diff --git a/src/arg.h b/src/arg.h
index 5285d92..0c2e23c 100644
--- a/src/arg.h
+++ b/src/arg.h
@@ -10,7 +10,7 @@ extern char *argv0;
 
 /* use main(int argc, char *argv[]) */
 #define ARGBEGIN       for (argv0 = *argv, argv++, argc--;\
-                                       argv[0] && argv[0][1];\
+                                       argv[0] && argv[0][0] == '-' && 
argv[0][1];\
                                        argc--, argv++) {\
                                char argc_;\
                                char **argv_;\