Change fall through comment in xmodmap.c to match gcc's requirements

Needs to match one of the regexps shown under
https://gcc.gnu.org/onlinedocs/gcc-7.3.0/gcc/Warning-Options.html#index-Wimplicit-fallthrough

Silences warning from gcc 7.3.0:

xmodmap.c: In function ‘main’:
xmodmap.c:358:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
   arg[1] = tolower (arg[1]);
   ~~~~~~~^~~~~~~~~~~~~~~~~~
xmodmap.c:360:8: note: here
        case 's':
        ^~~~

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

0 files changed, 0 insertions, 0 deletions