File 0790-erts-Fix-erlexec-to-not-append-to-args-if-no-env-fla.patch of Package erlang

From 9c113f4deeb7dc1ee02cd58003782e1d70edad56 Mon Sep 17 00:00:00 2001
From: Lukas Larsson <lukas@erlang.org>
Date: Thu, 10 Oct 2019 14:00:35 +0200
Subject: [PATCH] erts: Fix erlexec to not append -- to args if no env flags
 are set

Not having this broke: `erl -man erl`
---
 erts/etc/common/erlexec.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/erts/etc/common/erlexec.c b/erts/etc/common/erlexec.c
index 477a501876..a7f9ad2a33 100644
--- a/erts/etc/common/erlexec.c
+++ b/erts/etc/common/erlexec.c
@@ -1786,8 +1786,8 @@ done:
 	return NULL;
     }
     argv[argc++] = "--"; /* Add a -- separator in order
-                            for different from different environments
-                            to effect each other */
+                            for flags from different environments
+                            to not effect each other */
     argv[argc++] = NULL; /* Sure to be large enough */
     return argv;
 #undef ENSURE
@@ -2077,7 +2077,7 @@ initial_argv_massage(int *argc, char ***argv)
     if (av)
 	avv[vix++].argv = av;
 
-    if (vix == (*argc > 1 ? 1 : 0)) {
+    if (vix == (*argc > 1 ? 2 : 0)) {
 	/* Only command line argv; check if we can use argv as it is... */
 	ac = *argc;
 	av = *argv;
-- 
2.16.4