Update runtime files.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 9a88edb..b4ee717 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt* For Vim version 8.0. Last change: 2017 Mar 09
+*options.txt* For Vim version 8.0. Last change: 2017 Mar 22
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -6489,8 +6489,7 @@
Flag passed to the shell to execute "!" and ":!" commands; e.g.,
"bash.exe -c ls" or "command.com /c dir". For the MS-DOS-like
systems, the default is set according to the value of 'shell', to
- reduce the need to set this option by the user. It's not used for
- OS/2 (EMX figures this out itself).
+ reduce the need to set this option by the user.
On Unix it can have more than one flag. Each white space separated
part is passed as an argument to the shell command.
See |option-backslash| about including spaces and backslashes.