Reorder tests and add infos about force mode

cluster/sge.enable.host.queue.sh

@@ -47,8 +47,9 @@ OPTIONS :
         Enable debug messages.
 
     -f,--force
-        Force to (re)enable a queue even if it was
+        Try to (re)enable a queue even if it was previously
-        previously manually disabled (by a user).
+        manually disabled (by a user) and avoid all checks
+       (pending upgrades, running processes, files,…).
 
     --help
         Print this help message.
@@ -97,10 +98,10 @@ define_vars() {                                                 # {{{
 ${sge_hostname} is the current host."
 		## Enable to verify if pending upgrades are present
 		CHECK_UPGRADE="0"
-		## Enable to verify if upgrades are running
-		CHECK_PROCESS="0"
 		## Enable to watch if some files are present
 		CHECK_FILE="0"
+		## Enable to verify if upgrades are running
+		CHECK_PROCESS="0"
 	else  ## In case of a remote host
 		debug_message "define_vars − \
 ${sge_hostname} is not the current host."
@@ -112,10 +113,10 @@ ${sge_hostname} is not the current host."
 	if [ -n "${FORCE_MODE}" ] && [ "${FORCE_MODE}" -eq "0" ]; then
 		## Disable upgrade checking (remote host, asked behaviour,…)
 		CHECK_UPGRADE="1"
-		## Disable process checking (remote host, asked behaviour,…)
-		CHECK_PROCESS="1"
 		## Disable files monitoring
 		CHECK_FILE="1"
+		## Disable process checking (remote host, asked behaviour,…)
+		CHECK_PROCESS="1"
 	else
 		## Ensure to define a value
 		FORCE_MODE="1"
@@ -403,6 +404,19 @@ main() {                                                        # {{{
 			&& exit 0
 	fi
 
+	## If we need to watch files
+	if [ "${CHECK_FILE}" -eq "0" ]; then
+		## If nologin file exist (error on upgrade,…)
+		### Exit
+		is_file_present "${file_nologin_path}" \
+			&& exit 0
+
+		## If all SGE queue(s) were manually disabled (not any flag file)
+		### Exit
+		is_file_absent "${sge_queue_flag_pattern}" \
+			&& exit 0
+	fi
+
 	## If we need to watch for processes
 	if [ "${CHECK_PROCESS}" -eq "0" ]; then
 		## If anything related to APT is currently running
@@ -416,19 +430,6 @@ main() {                                                        # {{{
 			&& exit 0
 	fi
 
-	## If we need to watch files
-	if [ "${CHECK_FILE}" -eq "0" ]; then
-		## If nologin file exist
-		### Exit
-		is_file_present "${file_nologin_path}" \
-			&& exit 0
-
-		## If all SGE queue(s) were manually disabled (not any flag file)
-		### Exit
-		is_file_absent "${sge_queue_flag_pattern}" \
-			&& exit 0
-	fi
-
 	## Simple debug message with color to valid current variables
 	debug_message "main − Try to manage \
 SGE queue(s): ${RED}${sge_queues_name_print:=/dev/null}${COLOR_DEBUG}\