Patch by Aidil to ignore spurious whitespace in mudmode data.

This shouldn't be needed normally as all dgd implementations that I'm
aware of, and all mudos/fluffos implementations don't send such spurious
whitespace. This patch may be needed when trying to make a mudmode
connection to certain dikumud derivates and similar.
Merge branch 'master' of github.com:sirdude/gurbalib