DOC: Fix line length issues for the SoftwareGuide

Printing code in the latex generated SoftwareGuide requires that the code be
under approximately 80 characters in order to fit in the allocated space.  This
patch set reformats the code so that when printed in the SoftwareGuide it does
not overrun the column boundaries.

Additionally, the code was made more compact so that it fits more tightly into
the prose.  The small bits of code in the book can have less white space than
in the complete source file and still be easy to comprehend.

Change-Id: I472f4d643d39f809fc6afebb5bc2c917dc9834eb
Merge topic 'SoftwareGuideLineLength'

fdc5c2a DOC: Fix line length issues for the SoftwareGuide
COMP: Fix int to char narrowing error and warning

Change-Id: I97611b35a71f07395cd38c0ce08a76c4a0905eba
Merge topic 'FreeSurferNarrowingConversion'

5f8f4df COMP: Fix int to char narrowing error and warning