Don't allow specifying an fd with a caret redirection

For example, an argument 12345^ is a real argument, not a redirection
There's no reason to use ^ here instead of >, and it's annoying to git
users.

Fixes #1873

2 files changed, 4 insertions, 0 deletions

diff --git a/tests/test1.in b/tests/test1.in
index ff6075cc..6c3ba956 100644
--- a/tests/test1.in
+++ b/tests/test1.in
@@ -104,6 +104,9 @@ echo Test 5 $sta
 echo Test redirections
 begin ; echo output ; echo errput 1>&2  ; end 2>&1 | tee ../test/temp/tee_test.txt ; cat ../test/temp/tee_test.txt
 
+# Test that trailing ^ doesn't trigger redirection, see #1873
+echo caret_no_redirect 12345^
+
 # Verify that we can pipe something other than stdout
 # The first line should be printed, since we output to stdout but pipe stderr to /dev/null
 # The second line should not be printed, since we output to stderr and pipe it to /dev/null
diff --git a/tests/test1.out b/tests/test1.out
index 26251a3b..1b5eeade 100644
--- a/tests/test1.out
+++ b/tests/test1.out
@@ -25,6 +25,7 @@ errput
 output
 errput
 output
+caret_no_redirect 12345^
 is_stdout
 abc\ndef
 abc