Alad Wenter authored Jan 20, 2019 and Allan McRae committed Oct 07, 2019

remove_deps is called once, at the end of clean_up() before makepkg
exit. If remove_deps returns >0 (e.g. when pressing "n" in the resulting
prompt), the error is caught by the ERR signal handler. This in turns
sends SIGUSR1 to the process group, with resulting exit code 138.

In case remove_deps fails, this patch exits makepkg with E_REMOVE_DEPS
if there was no previous error (that is, EXIT_CODE equals E_OK).
Otherwise, makepkg exits with EXIT_CODE.

Signed-off-by: Allan McRae <allan@archlinux.org>