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/ \+$//'

1 files changed, 1 insertions, 1 deletions

diff --git a/Example/Demo/demo.cxx b/Example/Demo/demo.cxx
index 31de038..815c814 100644
--- a/Example/Demo/demo.cxx
+++ b/Example/Demo/demo.cxx
@@ -5,6 +5,6 @@ extern Hello hello;
 int main()
 {
   hello.Print();
-  
+
   return 0;
 }