[PATCH v2 4/8] Use read -r in shell scripts

Shellcheck warns:
read without -r will mangle backslashes.

While it is unlikely to happen in our case, just guard against the rare
case and avoid dealing with a warning. See [0] and [1] for a thorough
rational.

[0]: https://www.shellcheck.net/wiki/SC2162
[1]: https://mywiki.wooledge.org/BashFAQ/001
---
 contrib/bgedit-screen-tmux.sh | 3 +--
 patchlist.sh                  | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/contrib/bgedit-screen-tmux.sh b/contrib/bgedit-screen-tmux.sh
index 2adeebc3..9ab71157 100644
--- a/contrib/bgedit-screen-tmux.sh
+++ b/contrib/bgedit-screen-tmux.sh
@@ -61,6 +61,5 @@ else
   exit 1
 fi
 
-read exitval <"$tmpdir/status"
+read -r exitval <"$tmpdir/status"
 exit "$exitval"
-
diff --git a/patchlist.sh b/patchlist.sh
index ded488b2..6e17f797 100755
--- a/patchlist.sh
+++ b/patchlist.sh
@@ -35,7 +35,7 @@ void mutt_print_patchlist (void)
 {
 EOF
 
-list_patches | while read patch ; do
+list_patches | while read -r patch ; do
         echo "  puts (\"${patch}\");"
 done
 
-- 
2.51.0