Prevent multi-line preprocessor define from messing up highlighting

[bird-get]

It seems that multi-line preprocessor defines mess up the highlighting in the native SL editor:

#define HELP_MESSAGE "usage: partgen [-h]

A particle generator. Creates particle emitters with tweakable parameters.
 
optional arguments:
  -h, --help    show help and exit" <---- this double quote does not register properly

This breaks the highlighting for the rest of the code.

This could be fixed by adding //" to the end each time this is defined:

#define HELP_MESSAGE "usage: partgen [-h]

A particle generator. Creates particle emitters with tweakable parameters.
 
optional arguments:
  -h, --help    show help and exit"//" <--- Like so!

It looks pretty bad, but it's better than having no highlighting. An alternative would be to use different line breaks for each line.