switch out `wc -l` with `grep -c ^`

advanced/Scripts/piholeDebug.sh

@@ -361,13 +361,13 @@ files_check "${ADLISTFILE}"
 
 header_write "Analyzing gravity.list"
 
-	gravity_length=$(wc -l "${GRAVITYFILE}") \
+	gravity_length=$(grep -c ^ "${GRAVITYFILE}") \
 	&& log_write "${GRAVITYFILE} is ${gravity_length} lines long." \
 	|| log_echo "Warning: No gravity.list file found!"
 
 header_write "Analyzing pihole.log"
 
-  pihole_length=$(wc -l "${PIHOLELOG}") \
+  pihole_length=$(grep -c ^ "${PIHOLELOG}") \
   && log_write "${PIHOLELOG} is ${pihole_length} lines long." \
   || log_echo "Warning: No pihole.log file found!"