code-review-difftool: Turn off swap files

When the files being opened with `difftool` are already open in a Vim
instance, a 'swap file already exists' confirmation warning is displayed
for each file. Bypass the warning by not saving swap files (using the -n
command line option).

1 files changed, 4 insertions, 1 deletions

diff --git a/code-review-difftool b/code-review-difftool
index 9cbf631..87a332a 100755
--- a/code-review-difftool
+++ b/code-review-difftool
@@ -27,4 +27,7 @@ review_base="$(get_merge_base)"
 shopt -s extglob
 review_base_without_dots="${review_base%%?(..|...)}"
 
-vim -c "tabdo Gdiff $review_base_without_dots" -p $(code-review changed-files)
+vim \
+	-n \
+	-c "tabdo Gdiff $review_base_without_dots" \
+	-p $(code-review changed-files)