Help: correct macro -> function in CMakePrintHelpers

and apply lower case throughout

Modules/CMakePrintHelpers.cmake

@@ -5,32 +5,33 @@
 CMakePrintHelpers
 -----------------
 
-Convenience macros for printing properties and variables, useful e.g. for debugging.
+Convenience functions for printing properties and variables, useful
+e.g. for debugging.
 
 ::
 
- CMAKE_PRINT_PROPERTIES([TARGETS target1 ..  targetN]
+  cmake_print_properties([TARGETS target1 ..  targetN]
                         [SOURCES source1 .. sourceN]
                         [DIRECTORIES dir1 .. dirN]
                         [TESTS test1 .. testN]
                         [CACHE_ENTRIES entry1 .. entryN]
                         PROPERTIES prop1 .. propN )
 
-This macro prints the values of the properties of the given targets,
+This function prints the values of the properties of the given targets,
 source files, directories, tests or cache entries.  Exactly one of the
 scope keywords must be used.  Example::
 
-   cmake_print_properties(TARGETS foo bar PROPERTIES
-                          LOCATION INTERFACE_INCLUDE_DIRS)
+  cmake_print_properties(TARGETS foo bar PROPERTIES
+                         LOCATION INTERFACE_INCLUDE_DIRS)
 
 This will print the LOCATION and INTERFACE_INCLUDE_DIRS properties for
 both targets foo and bar.
 
+::
 
+  cmake_print_variables(var1 var2 ..  varN)
 
-CMAKE_PRINT_VARIABLES(var1 var2 ..  varN)
-
-This macro will print the name of each variable followed by its value.
+This function will print the name of each variable followed by its value.
 Example::
 
   cmake_print_variables(CMAKE_C_COMPILER CMAKE_MAJOR_VERSION DOES_NOT_EXIST)
@@ -40,7 +41,7 @@ Gives::
   -- CMAKE_C_COMPILER="/usr/bin/gcc" ; CMAKE_MAJOR_VERSION="2" ; DOES_NOT_EXIST=""
 #]=======================================================================]
 
-function(CMAKE_PRINT_VARIABLES)
+function(cmake_print_variables)
    set(msg "")
    foreach(var ${ARGN})
       if(msg)
@@ -52,7 +53,7 @@ function(CMAKE_PRINT_VARIABLES)
 endfunction()
 
 
-function(CMAKE_PRINT_PROPERTIES )
+function(cmake_print_properties)
   set(options )
   set(oneValueArgs )
   set(multiValueArgs TARGETS SOURCES TESTS DIRECTORIES CACHE_ENTRIES PROPERTIES )