This corrects the closing sequence for the ConEmu progress reporting
final sequence. We by mistake sent two final ;;, where only one was
expected. The terminals I tested this with didn't care, but Ghostty
apparently does. Let's fix things and generate the closing sequence as
per doc:
https://conemu.github.io/en/AnsiEscapeCodes.html#ConEmu_specific_OSC
stderr);
else
/* Undo Windows Terminal progress indication again. */
- fputs(ANSI_OSC "9;4;0;;" ANSI_ST
+ fputs(ANSI_OSC "9;4;0;" ANSI_ST
ANSI_ERASE_TO_END_OF_LINE, stderr);
fputc('\r', stderr);