pgsql: pg_logicalinspect: Fix possible crash when passing a directory p

Applying: Detect elog(ERROR) can't return in MSVC when using C11
Using index info to reconstruct a base tree...
M	meson.build
M	src/backend/backup/basebackup_target.c
M	src/include/c.h
M	src/include/utils/elog.h
Falling back to patching base and 3-way merge...
Auto-merging src/include/utils/elog.h
CONFLICT (content): Merge conflict in src/include/utils/elog.h
Auto-merging src/include/c.h
CONFLICT (content): Merge conflict in src/include/c.h
Auto-merging src/backend/backup/basebackup_target.c
Auto-merging meson.build
CONFLICT (content): Merge conflict in meson.build
Patch failed at 0001 Detect elog(ERROR) can't return in MSVC when using C11

error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
hint: When you have resolved this problem, run "git am --continue".
hint: If you prefer to skip this patch, run "git am --skip" instead.
hint: To restore the original branch and stop patching, run "git am --abort".
hint: Disable this message with "git config advice.mergeConflict false"