tdf#150251: clarify macro URL authority in command line help

Change-Id: Idaf76365802023204bd2be27d9b4db62cd12f8dc
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137780
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
diff --git a/desktop/source/app/cmdlinehelp.cxx b/desktop/source/app/cmdlinehelp.cxx
index 419b03b..58b8b3a 100644
--- a/desktop/source/app/cmdlinehelp.cxx
+++ b/desktop/source/app/cmdlinehelp.cxx
@@ -46,7 +46,10 @@ namespace desktop
        "   {file}              Tries to open the file (files) in the components        \n"
        "                       suitable for them.                                      \n"
        "   {file} {macro:///Library.Module.MacroName}                                  \n"
        "                       Opens the file and runs specified macros from           \n"
        "                       Opens the file and runs specified macro from            \n"
        "                       My Macros container.                                    \n"
        "   {file} {macro://./Library.Module.MacroName}                                 \n"
        "                       Opens the file and runs specified macro from            \n"
        "                       the file.                                               \n\n"
        "Getting help and information:                                                  \n"
        "   --help | -h | -?    Shows this help and quits.                              \n"