patch 7.4.1675
Problem:    The swapmous plugin has to be copied or sourced to be used.
Solution:   Turn it into the swapmouse package.
diff --git a/runtime/macros/README.txt b/runtime/macros/README.txt
index a805007..a134112 100644
--- a/runtime/macros/README.txt
+++ b/runtime/macros/README.txt
@@ -15,9 +15,6 @@
 
 shellmenu.vim		menus for editing shell scripts in the GUI version
 
-swapmous.vim		swap left and right mouse buttons
-
-editexisting.vim	
 
 This one is only for Unix.
 file_select.vim		macros that make a handy file selector
@@ -34,3 +31,5 @@
 packadd! justify	justifying text.
 
 packadd! matchit	makes the % command work better
+
+packadd! swapmouse	swap left and right mouse buttons