Remove trailing whitespace from most CMake and C/C++ code
Our Git commit hooks disallow modification or addition of lines with
trailing whitespace. Wipe out all remnants of trailing whitespace
everywhere except third-party code.
Run the following shell code:
git ls-files -z -- \
bootstrap doxygen.config '*.readme' \
'*.c' '*.cmake' '*.cpp' '*.cxx' \
'*.el' '*.f' '*.f90' '*.h' '*.in' '*.in.l' '*.java' \
'*.mm' '*.pike' '*.py' '*.txt' '*.vim' |
egrep -z -v '^(Utilities/cm|Source/(kwsys|CursesDialog/form)/)' |
egrep -z -v '^(Modules/CPack\..*\.in)' |
xargs -0 sed -i 's/ \+$//'