Fixed another shellcheck issue

Author: abusenius

events/example

@@ -75,7 +75,7 @@ rm -f "$TMPFILE" >/dev/null 2>&1
 
 # This example starts gwenview if it is not already started
 # 
-# if ! ps aux | /bin/grep -wqE 'gwen[v]iew' ; then
+# if ! pgrep gwenview >/dev/null ; then
 #     gwenview >/dev/null 2>&1 &
 # fi
 

events/scan

@@ -30,7 +30,7 @@ convert "$TMPFILE" -quality 85 "$OUTFILE" >> "$INSANED_LOGFILE" 2>&1
 
 rm -f "$TMPFILE" >/dev/null 2>&1
 
-if ! ps aux | grep -Eq 'gwen[v]iew' ; then
+if ! pgrep gwenview >/dev/null ; then
     gwenview "$OUTFILE" &
 fi