per Mike Frysinger's patch with a few tweaks of mine, in

per Mike Frysinger's patch with a few tweaks of mine, in
doc/syntax/asm.nanorc, doc/syntax/c.nanorc, and doc/syntax/sh.nanorc,
copy the regex that highlights trailing whitespace from
doc/syntax/java.nanorc to these files, as it's also useful in them

git-svn-id: svn://svn.savannah.gnu.org/nano/branches/nano_2_0_branch/nano@4071 35c25a1d-7b9e-4130-9fde-d3aeb78583b8