The man page says:

For portable use, optional-arg should either be absent, or be
specified as a single word (i.e., it should not contain white
space); see NOTES below.

Since the commit 4131356cd ("man*/, man-pages.7: VERSIONS, STANDARDS,
HISTORY: Reorganize sections"), the discussion about optional-arg is in
VERSIONS.

Fixes: 4131356cd ("man*/, man-pages.7: VERSIONS, STANDARDS, HISTORY: Reorganize sections")
Signed-off-by: Kir Kolyshkin <redacted>
---
 man/man2/execve.2 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/man/man2/execve.2 b/man/man2/execve.2
index 997bb4724..1802258ae 100644
--- a/man/man2/execve.2
+++ b/man/man2/execve.2

@@ -362,7 +362,7 @@ .SS Interpreter scripts
 For portable use,
 .I optional-arg
 should either be absent, or be specified as a single word (i.e., it
-should not contain white space); see NOTES below.
+should not contain white space); see VERSIONS below.
 .P
 Since Linux 2.6.28,
 .\" commit bf2a9a39639b8b51377905397a5005f444e9a892

-- 
2.45.2