[PATCH] Reintegrate: send "Huh?" warnings to stderr, not stdout

The "Huh?: $msg" warning in show_merge(), emitted when a first-parent merge subject does not match either "Merge branch '...'" or "Merge remote branch '...'", uses

	echo 2>&1 "Huh?: $msg"

The "2>&1" redirect dupes stderr onto stdout's destination; it does not change where stdout itself points. Since echo writes to stdout, the "Huh?:" message lands on stdout regardless -- as would any command's normal output. The intent appears to have been ">&2", which dupes stdout onto stderr.

In the common Reintegrate invocation that captures stdout, e.g.

	Meta/Reintegrate next..seen >Meta/redo-seen.sh

this means the warning is silently embedded in the generated heredoc body instead of being printed to the maintainer's terminal. The resulting redo-* script is corrupted with a "Huh?:..." line and the maintainer has no diagnostic that something went wrong.

Every other diagnostic in this script already uses ">&2"; this line is the lone outlier.

Use ">&2" so the warning reaches stderr as intended.

Signed-off-by: Erik Cervin-Edin <erik@cervined.in>
---
 Reintegrate | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)