Remove CMake-language block-end command arguments

Ancient versions of CMake required else(), endif(), and similar block
termination commands to have arguments matching the command starting the
block.  This is no longer the preferred style.

Run the following shell code:

for c in else endif endforeach endfunction endmacro endwhile; do
    echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/'
done >convert.sed &&
git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' |
egrep -z -v '^(Utilities/cm|Source/kwsys/)' |
egrep -z -v 'Tests/CMakeTests/While-Endwhile-' |
xargs -0 sed -i -f convert.sed &&
rm convert.sed

Tests/LoadCommandOneConfig/CMakeCommands/CMakeLists.txt

@@ -3,15 +3,15 @@ project(CMAKE_LOADED_COMMANDS)
 
 if (MUDSLIDE_TYPE MATCHES MUCHO)
   add_definitions(-DMUCHO_MUDSLIDE)
-endif (MUDSLIDE_TYPE MATCHES MUCHO)
+endif ()
 
 if(WATCOM)
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
-endif(WATCOM)
+endif()
 include_directories(${CMAKE_ROOT}/include ${CMAKE_ROOT}/Source)
 
 add_library(cmCMAKE_TEST_COMMAND MODULE cmTestCommand.c)
 
 if(WATCOM)
   target_link_libraries(cmCMAKE_TEST_COMMAND clbsdll.lib)
-endif(WATCOM)
+endif()