LU-1205 tests: cleanup code style in mmap_sanity.c

LU-1205 tests: cleanup code style in mmap_sanity.c

Cleanup numerous code style issues in the mmap_sanity.c test:
- whitespace at end of line
- spaces around operators
- indentation
- line wrapping at 80 columns

Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Signed-off-by: Bob Glossman <bogl@whamcloud.com>
Change-Id: If47eeeb1dec2705b9aa4e70cba3c1bc9241546a7
Reviewed-on: http://review.whamcloud.com/2722
Tested-by: Hudson
Reviewed-by: Yu Jian <yujian@whamcloud.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>