systemd: add SyslogIdentifier for /bin/sh processes

These units appear in the journal with the identifier `sh` so set a
sensible identifier for them to aid in log readability

Signed-off-by: Joe Groocock <me@frebib.net>

systemd/user/gphoto-ffmpeg@.service

@@ -9,6 +9,7 @@ ExecStop=/bin/kill $MAINPID
 ExecStop=-/usr/bin/gphoto2 --set-config viewfinder=0
 Restart=always
 RestartSec=5
+SyslogIdentifier=gphoto-ffmpeg
 Slice=app.slice
 
 [Install]

systemd/user/wallpaper.service

@@ -6,9 +6,10 @@ After=graphical-session.target
 [Service]
 Environment=FEH_OPTIONS="--no-fehbg --no-xinerama"
 Environment=WALLPAPER=/home/frebib/pictures/lakesidesunrise.jpg
-ExecStartPre=feh $FEH_OPTIONS --bg-fill $WALLPAPER
+ExecStartPre=/bin/sh -c "exec feh $FEH_OPTIONS --bg-fill $WALLPAPER"
 ExecStart=/bin/sh -c "xev -root -event randr 2>&1 | while awk -v RS=\\n\\n '{exit;}'; do echo 'Applying wallpaper'; feh $FEH_OPTIONS --bg-fill $WALLPAPER; done"
 Restart=always
+SyslogIdentifier=wallpaper
 Slice=session.slice
 
 [Install]

systemd/user/xprofile.service

@@ -7,6 +7,7 @@ After=xorg.target
 Type=oneshot
 RemainAfterExit=yes
 ExecStart=/bin/sh -c '. $XDG_CONFIG_HOME/X11/xprofile; systemctl --user import-environment'
+SyslogIdentifier=xprofile
 Slice=session.slice
 
 [Install]

systemd/user/xsettingsd.service

@@ -6,6 +6,7 @@ After=xorg.target
 [Service]
 ExecStart=/bin/sh -c 'xsettingsd -c $XDG_CONFIG_HOME/xsettingsd/xsettingsd.local'
 ExecReload=/bin/kill -s HUP $MAINPID
+SyslogIdentifier=xsettingsd
 Restart=always
 Slice=session.slice