Cygwin: cygserver: Drop -f option from ps in cygserver-config

... because cygserver-config no longer works due to the behaviour
change of -f option in 'ps'.

Addresses: https://cygwin.com/pipermail/cygwin/2025-April/258086.html
Fixes: 1ce9756 ("Cygwin: ps -f: output command line")
Reported-by: Christian Lupien <[email protected]>
Signed-off-by: Takashi Yano <[email protected]>

Author: tyan0

winsup/cygserver/cygserver-config

@@ -89,7 +89,7 @@ _sys="`uname`"
 _nt=`expr "${_sys}" : "CYGWIN_NT"`
 
 # Check for running cygserver processes first.
-if ps -ef | grep -v grep | grep -q ${service_name}
+if ps -e | grep -v grep | grep -q ${service_name}
 then
   echo
   echo "There is a cygserver (${service_name}) already running. Nothing to do, apparently."