[PATCH 5.5 083/176] docs: Fix empty parallelism argument

[Greg Kroah-Hartman]

From: Kees Cook <keescook@xxxxxxxxxxxx>

commit adc10f5b0a03606e30c704cff1f0283a696d0260 upstream.

When there was no parallelism (no top-level -j arg and a pre-1.7
sphinx-build), the argument passed would be empty ("") instead of just
being missing, which would (understandably) badly confuse sphinx-build.
Fix this by removing the quotes.

Reported-by: Rafael J. Wysocki <rafael@xxxxxxxxxx>
Fixes: 51e46c7a4007 ("docs, parallelism: Rearrange how jobserver reservations are made")
Cc: stable@xxxxxxxxxxxxxxx  # v5.5 only
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 Documentation/sphinx/parallel-wrapper.sh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/Documentation/sphinx/parallel-wrapper.sh
+++ b/Documentation/sphinx/parallel-wrapper.sh
@@ -30,4 +30,4 @@ if [ -n "$parallel" ] ; then
 	parallel="-j$parallel"
 fi
 
-exec "$sphinx" "$parallel" "$@"
+exec "$sphinx" $parallel "$@"