Uninitialized value used in ch_init

[correctmost]

Description

I noticed this issue while testing xfce4-terminal. It doesn't seem to affect functionality, but I thought I'd report it anyhow.

Steps to reproduce

1. cat | valgrind --track-origins=yes ./less
2. Press Ctrl + c
3. Press q

Valgrind trace

Conditional jump or move depends on uninitialised value(s)
   at 0x112A98: ch_init (ch.c:858)
   by 0x11C0BB: edit_ifile (edit.c:611)
   by 0x11BA9A: edit (edit.c:399)
   by 0x11C705: edit_stdin (edit.c:903)
   by 0x11C413: edit_first (edit.c:740)
   by 0x10EC21: main (main.c:441)
 Uninitialised value was created by a stack allocation
   at 0x11BB15: edit_ifile (edit.c:433)

Version info

• Tested with ec23abd on Arch Linux

[gwsw]

Fixed in 715297e.