patch 8.1.1510: a plugin cannot easily expand a command like done internally
Problem: A plugin cannot easily expand a command like done internally.
Solution: Add the expandcmd() function. (Yegappan Lakshmanan, closes #4514)
diff --git a/runtime/doc/usr_41.txt b/runtime/doc/usr_41.txt
index 719f015..ee3423c 100644
--- a/runtime/doc/usr_41.txt
+++ b/runtime/doc/usr_41.txt
@@ -1,4 +1,4 @@
-*usr_41.txt* For Vim version 8.1. Last change: 2019 May 29
+*usr_41.txt* For Vim version 8.1. Last change: 2019 Jun 09
VIM USER MANUAL - by Bram Moolenaar
@@ -609,6 +609,7 @@
strcharpart() get part of a string using char index
strgetchar() get character from a string using char index
expand() expand special keywords
+ expandcmd() expand a command like done for `:edit`
iconv() convert text from one encoding to another
byteidx() byte index of a character in a string
byteidxcomp() like byteidx() but count composing characters