Merge branch 'tr/maint-1.6.5-bash-prompt-show-submodule-changes' into maint-1.6.5

* tr/maint-1.6.5-bash-prompt-show-submodule-changes:
  bash completion: factor submodules into dirty state

Author: gitster

contrib/completion/git-completion.bash

@@ -148,11 +148,9 @@ __git_ps1 ()
 		elif [ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then
 			if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ]; then
 				if [ "$(git config --bool bash.showDirtyState)" != "false" ]; then
-					git diff --no-ext-diff --ignore-submodules \
-						--quiet --exit-code || w="*"
+					git diff --no-ext-diff --quiet --exit-code || w="*"
 					if git rev-parse --quiet --verify HEAD >/dev/null; then
-						git diff-index --cached --quiet \
-							--ignore-submodules HEAD -- || i="+"
+						git diff-index --cached --quiet HEAD -- || i="+"
 					else
 						i="#"
 					fi