runtime(doc): Remove trailing spaces (#14784)

Fix the issues introduced by #14770.

diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index edc018fe7a7550f720fff3eb853c97473227a64f..1d06e750a619f98e51384dcca5534d67fe94a17c 100644 (file)
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -8993,9 +8993,9 @@ shellescape({string} [, {special}])                       *shellescape()*
 
                The {special} argument adds additional escaping of keywords
                used in Vim commands. When it is not omitted and a non-zero
-               number or a non-empty String (|non-zero-arg|), then special 
-               items such as "!", "%", "#" and "<cword>" (as listed in 
-               |expand()|) will be preceded by a backslash. 
+               number or a non-empty String (|non-zero-arg|), then special
+               items such as "!", "%", "#" and "<cword>" (as listed in
+               |expand()|) will be preceded by a backslash.
                This backslash will be removed again by the |:!| command.
 
                The "!" character will be escaped (again with a |non-zero-arg|