samples/java_interface/java_calls_mercury/*.m:
Use spaces instead of tabs.
Delete trailing whitespace.
Fix a cut-and-paste error where exports to C instead of
Java are referred to.
samples/java_interface/mercury_calls_java/Makefile:
Fix the compilation options for this example.
samples/java_interface/mercury_calls_java/mercury_main.m:
Fix formatting.
This file-specific setting will override a default setting of expandtabs
in $HOME/.vimrc.
*/Makefile:
*/Mmakefile:
As above.
tests/hard_coded/.gitignore:
Don't ignore the purity subdir. This ignore must have been left over
from when purity.m was a test in hard_coded, not hard_coded/purity,
and it ignored an executable, not a directory.