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

tests/cond-regexp3.sub

@@ -58,7 +58,7 @@ done
 [[ x =~ \\x ]] ; echo $?
 
 bs='\'
-[[ x =~ ${bs}x ]] ; echo $?
+[[ '\[' =~ ${bs}[ ]] ; echo $?
 
 [[ x =~ $'\\'x ]] ; echo $?
 [[ x =~ '\'x ]] ; echo $?

tests/glob2.sub

@@ -18,7 +18,7 @@ if locale -a | grep -i '^zh_TW\.big5' >/dev/null ; then
         :
 else
         echo "glob2.sub: warning: you do not have the zh_TW.big5 locale installed;" >&2
-        echo "glob2.sub: warning: that will cause some of these tests to fail." >&2
+        echo "glob2.sub: warning: that may cause some of these tests to fail." >&2
 fi
 
 var='ab\'