updated for version 7.4.191
Problem: Escaping a file name for shell commands can't be done without a
function.
Solution: Add the :S file name modifier.
diff --git a/runtime/doc/usr_40.txt b/runtime/doc/usr_40.txt
index b1108a5..9d70648 100644
--- a/runtime/doc/usr_40.txt
+++ b/runtime/doc/usr_40.txt
@@ -209,7 +209,7 @@
separates the two commands. This also means that a | character can't be used
inside a map command. To include one, use <Bar> (five characters). Example:
>
- :map <F8> :write <Bar> !checkin %<CR>
+ :map <F8> :write <Bar> !checkin %:S<CR>
The same problem applies to the ":unmap" command, with the addition that you
have to watch out for trailing white space. These two commands are different: