changes serverfiles to filesdir

names the var wrong. This is confusing calling the var filesdir. I may
changes this in the future.

functions/fn_details_distro

@@ -2,7 +2,7 @@
 # LGSM fn_details_distro function
 # Author: Daniel Gibbs
 # Website: http://gameservermanagers.com
-lgsm_version="201215"
+lgsm_version="211215"
 
 # Description: Variables providing useful info on the Operating System such as disk and performace info.
 # Used for fn_details, fn_debug and fn_email.
@@ -70,9 +70,9 @@ usedspace=$(df -hP "${rootdir}" | grep -v "Filesystem" | awk '{print $3}')
 availspace=$(df -hP "${rootdir}" | grep -v "Filesystem" | awk '{print $4}')
 
 # used space in serverfiles dir.
-serverfilesdu=$(du -sh "${serverfiles}" | awk '{print $1}')
-if [ -z ${serverfilesdu} ]; then
-	serverfilesdu="0M"
+filesdirdu=$(du -sh "${filesdir}" | awk '{print $1}')
+if [ -z ${filesdirdu} ]; then
+	filesdirdu="0M"
 fi
 
 # Backup info
@@ -87,7 +87,7 @@ if [ -d "${backupdir}" ]; then
 	# most recent backup.
 	lastbackup=$(ls -t "${backupdir}"/*.tar.gz | head -1)
 	# date of most recent backup.
-	lastbackupdate=$(date -r ${lastbackup})
+	lastbackupdate=$(date -r "${lastbackup}")
 	# size of most recent backup.
 	lastbackupsize=$(du -h "${lastbackup}" | awk '{print $1}')