commit 1ad07b5

Handle empty message properly

Sending nothing in senpai makes the if check to work properly, however
if sent nothing but a space, senpai will panic, as parseCommand assumes
it is alphanumerical and not just a space.

This commit fixes it by making parseCommand return false instead of
panic when a message is empty.

Co-authored-by: delthas <delthas@dille.cc>
Co-authored-by: sewn <sewn@disroot.org>

1@@ -876,7 +876,7 @@ func fieldsN(s string, n int) []string {
2 }
3 
4 func parseCommand(s string) (command, args string, isCommand bool) {
5-	if s[0] != '/' {
6+	if len(s) == 0 || s[0] != '/' {
7 		return "", s, false
8 	}
9 	if len(s) > 1 && s[1] == '/' {