Merge branch 'sm/mv-dry-run-update' into maint

Code clean-up.

* sm/mv-dry-run-update:
  mv: remove unneeded 'if (!show_only)'
  t7001: add test case for --dry-run
diff --git a/builtin/mv.c b/builtin/mv.c
index cf3684d..8ce6a2d 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -286,8 +286,7 @@
 
 		pos = cache_name_pos(src, strlen(src));
 		assert(pos >= 0);
-		if (!show_only)
-			rename_cache_entry_at(pos, dst);
+		rename_cache_entry_at(pos, dst);
 	}
 
 	if (gitmodules_modified)
diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh
index 6e5031f..d4e6485 100755
--- a/t/t7001-mv.sh
+++ b/t/t7001-mv.sh
@@ -39,6 +39,12 @@
     grep "^R100..*path1/COPYING..*path0/COPYING"'
 
 test_expect_success \
+    'mv --dry-run does not move file' \
+    'git mv -n path0/COPYING MOVED &&
+     test -f path0/COPYING &&
+     test ! -f MOVED'
+
+test_expect_success \
     'checking -k on non-existing file' \
     'git mv -k idontexist path0'