trivial changes in a series of sims that could not be parsed with cygwin gcc.
some commands require a trailing space to be recognized. a trailing space used to be concatenated after the input string pad lines out - this appears to have been lost in the changes over the past year. two commands had issues with gcc / cygwin
CMB - two changes, added trailing space to sims that use this command, but also changed parse_commands.cpp to only check on first three characters
element xx on - added trailing space