"midori --help-execute" crashes

[gue5t gue5t]

With recent changes to some encoding names, the action name EncodingChineseSimplified, which is longer than the old longest action name, started causing the line, "gchar* padding = g_strndup (space, strlen (space) - strlen (name));" in main.c to try to allocate a negative amount of memory (which was interpreted as an unsigned integer, and led to a crash when said memory couldn't be allocated). The attached patch fixes this and makes the printing logic work regardless of what action names might be present in the future.

[Cris Dywan (kalikiana)]

Good catch!