With the latest mdoc(7), we can now fix the synopsis like this.

Desired by:	bde

1 files changed, 9 insertions, 3 deletions

diff --git a/lib/libc/gen/exec.3 b/lib/libc/gen/exec.3
index ea0f5b4..fd23e16 100644
--- a/lib/libc/gen/exec.3
+++ b/lib/libc/gen/exec.3
@@ -50,11 +50,17 @@
 .In unistd.h
 .Vt extern char **environ ;
 .Ft int
-.Fn execl "const char *path" "const char *arg" "... /*" "(char *)0*/"
+.Fn execl "const char *path" "const char *arg" ... /* "(char *)0" */
 .Ft int
-.Fn execlp "const char *file" "const char *arg" "... /*" "(char *)0*/"
+.Fn execlp "const char *file" "const char *arg" ... /* "(char *)0" */
 .Ft int
-.Fn execle "const char *path" "const char *arg" "... /*" "(char *)0" "char *const envp[]*/"
+.Fo execle
+.Fa "const char *path" "const char *arg" ...
+.Fa /*
+.Bk -words
+.Fa "(char *)0" "char *const envp[]" */
+.Ek
+.Fc
 .Ft int
 .Fn exect "const char *path" "char *const argv[]" "char *const envp[]"
 .Ft int