tests: Load screendump files with "git vimdumps"
Also, fold the difference part and the bottom part for the
identical screendump files.
closes: #16380
Co-authored-by: D. Ben Knoble <ben.knoble+github@gmail.com>
Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/terminal.txt b/runtime/doc/terminal.txt
index 1fcc470..43b5e5f 100644
--- a/runtime/doc/terminal.txt
+++ b/runtime/doc/terminal.txt
@@ -494,6 +494,12 @@
Environment variables are used to pass information to the running job:
VIM_SERVERNAME v:servername
+ *git-vimdumps*
+There exists a git-difftool extension called `git-vimdumps` that can be used
+to conveniently inspect screendump files and diff them. Please see in the Vim
+Repository the file `src/testdir/commondumps.vim` on how to create and use
+this git extension.
+
==============================================================================
2. Terminal functions *terminal-function-details*