Brandon Williams wrote:

Move the logic for 'is_executable()' from help.c to run_command.c and
expose it so that callers from outside help.c can access the function.
This is to enable run-command to be able to query if a file is
executable in a future patch.

Signed-off-by: Brandon Williams <redacted>
---
 help.c        | 43 +------------------------------------------
 run-command.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 run-command.h |  1 +
 3 files changed, 44 insertions(+), 42 deletions(-)

Reviewed-by: Jonathan Nieder <redacted>