[dev][ii][patch] Allow calling ii without any argument (using defaults)

[Jean-Philippe Gagné Guay]

ii could be called without any argument, using the defaults described in the
manpage.

diff --git a/ii.c b/ii.c
index d93266c..0816009 100644
--- a/ii.c
+++ b/ii.c
@@ -466,7 +466,7 @@ int main(int argc, char *argv[]) {
        }
        snprintf(nick, sizeof(nick), "%s", spw->pw_name);
        snprintf(prefix, sizeof(prefix),"%s/irc", spw->pw_dir);
-       if (argc <= 1 || (argc == 2 && argv[1][0] == '-' && argv[1][1] == 'h')) 
usage();
+       if (argc < 1 || (argc == 2 && argv[1][0] == '-' && argv[1][1] == 'h')) 
usage();
 
        for(i = 1; (i + 1 < argc) && (argv[i][0] == '-'); i++) {
                switch (argv[i][1]) {