change some error messages so the format string isn't the return value from gettext(); work around macos problem with gettext() in child processes; don't try to set tty state while running a trap; don't default to trying enable -f file if the shell is restricted; note that configure now supports --enable-year2038

tests/comsub2.right

@@ -86,10 +86,10 @@ outside before: value
 declare -a a=([0]="1" [1]="2" [2]="3" [3]="4")
 declare -- int="2"
 after here-doc: 1
-[1]-  Running                 sleep 1 &
-[2]+  Running                 sleep 1 &
-[1]-  Running                 sleep 1 &
-[2]+  Running                 sleep 1 &
+[1]-  Running                    sleep 1 &
+[2]+  Running                    sleep 1 &
+[1]-  Running                    sleep 1 &
+[2]+  Running                    sleep 1 &
 17772 26794
 17772 26794
 we should try rhs