sysutils/py-salt: fix commands like "service salt_minion status"

When py-processtitle is installed, the master and minion daemons will
change their process titles in a way that breaks commands like "service
salt_minion status".  status, stop, restart, etc are all broken.  Fix
this bug by:

* Always installing py-processtitle unconditionally,
* Fixing utils/process.py to not insert an extra space in the title
* Adjusting the RC scripts accordingly

A downside is that many service subcommands will now print this harmless
warning message:
```
/usr/local/etc/rc.d/salt_minion: WARNING: cannot read shebang line from
MultiMinionProcessManager
```

Approved by:	krion (maintainer)
Sponsored by:	ConnectWise
PR:		285053

sysutils/py-salt/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	salt
 PORTVERSION=	3006.9
-PORTREVISION=	3
+PORTREVISION=	4
 PORTEPOCH=	1
 CATEGORIES=	sysutils python
 MASTER_SITES=	PYPI

sysutils/py-salt/files/patch-salt_utils_process.py

@@ -0,0 +1,14 @@
+--- salt/utils/process.py.orig	2024-07-29 07:51:58 UTC
++++ salt/utils/process.py
+@@ -59,7 +59,10 @@ def appendproctitle(name):
+         current = setproctitle.getproctitle()
+         if current.strip().endswith("MainProcess"):
+             current, _ = current.rsplit("MainProcess", 1)
+-        setproctitle.setproctitle(f"{current.rstrip()} {name}")
++        if len(current) > 0:
++            setproctitle.setproctitle(f"{current.rstrip()} {name}")
++        else:
++            setproctitle.setproctitle(name)
+
+
+ def daemonize(redirect_out=True):

sysutils/py-salt/files/salt_master.in

@@ -34,6 +34,7 @@ command_interpreter="%%PYTHON_CMD%%"
 required_files=${salt_master_configdir}
 pidfile=${salt_master_pidfile}
 command_args="-c ${required_files} --pid-file=${pidfile} -d"
+procname="MainProcess"
 
 export PATH="${salt_master_paths}"
 export PYTHON_EGG_CACHE="${salt_master_eggcache}"

sysutils/py-salt/files/salt_minion.in

@@ -34,6 +34,7 @@ command_interpreter="%%PYTHON_CMD%%"
 required_files=${salt_minion_configdir}
 pidfile=${salt_minion_pidfile}
 command_args="-c ${required_files} --pid-file=${pidfile} -d"
+procname="MultiMinionProcessManager"
 
 export PATH="${salt_minion_paths}"
 export PYTHON_EGG_CACHE="${salt_minion_eggcache}"