patch 8.2.0054: :diffget and :diffput don't have good completion
Problem: :diffget and :diffput don't have good completion.
Solution: Add proper completion. (Dominique Pelle, closes #5409)
diff --git a/src/usercmd.c b/src/usercmd.c
index 5db6f48..1a6fbee 100644
--- a/src/usercmd.c
+++ b/src/usercmd.c
@@ -57,6 +57,7 @@
{EXPAND_USER_DEFINED, "custom"},
{EXPAND_USER_LIST, "customlist"},
#endif
+ {EXPAND_DIFF_BUFFERS, "diff_buffer"},
{EXPAND_DIRECTORIES, "dir"},
{EXPAND_ENV_VARS, "environment"},
{EXPAND_EVENTS, "event"},