fatal-signal: Pass the signal number to the action. * lib/fatal-signal.h (at_fatal_signal): Change the signature. * lib/fatal-signal.c (action_t): Take the signal number as parameter. (fatal_signal_handler): Pass the signal number to the action. * lib/clean-temp.c (cleanup_action): Renamed from cleanup. Take the signal number as parameter. (create_temp_dir): Update. * lib/wait-process.c (cleanup_slaves_action): New function. (register_slave_subprocess): Update at_fatal_signal invocation. * NEWS: Mention the change.

--- test-driver.bak	2019-01-23 03:22:06.672283432 +0100
+++ test-driver	2019-01-23 04:23:21.201060757 +0100
@@ -104,7 +104,10 @@
 trap "st=143; $do_exit" 15

 # Test script is run here.
-"$@" >$log_file 2>&1
+case "$1" in
+  *.sh) sh "$@" >$log_file 2>&1 ;;
+  *)    "$@" >$log_file 2>&1 ;;
+esac
 estatus=$?

 if test $enable_hard_errors = no && test $estatus -eq 99; then