Bug#1030740: gcc: update-patches target doesn't recognize env

[YunQiang Su <wzssyqa@gmail.com>]

Package: src:gcc-13

the `update-patches` target in debian/rules.patches doesn't use the env
   QUILT_REFRESH_ARGS="--no-timestamps --no-index -pab"
   QUILT_DIFF_ARGS="--no-timestamps --no-index -pab"
 passed to it.

The fellow changes seems work well.

update-patches: $(series_stamp)
       export QUILT_PATCHES=$(patchdir); \
       export QUILT_REFRESH_ARGS="--no-timestamps --no-index -pab"; \
       export QUILT_DIFF_ARGS="--no-timestamps --no-index -pab"; \
-       while quilt push; do quilt refresh; done
+.     while quilt push; do quilt refresh --no-timestamps --no-index -pab; done


PS: is it a good idea to run `quilt pop -a` before refresh patches?

--
YunQiang Su