Fixes for scaleTopo test

Change-Id: I124f2968ececdce37419fa8a5aedd3e8a7bdf905
diff --git a/TestON/drivers/common/cli/onosclidriver.py b/TestON/drivers/common/cli/onosclidriver.py
index 033ba87..fca1a92 100755
--- a/TestON/drivers/common/cli/onosclidriver.py
+++ b/TestON/drivers/common/cli/onosclidriver.py
@@ -5421,8 +5421,8 @@
             elif mode == 'first':
                 cmd = cmd + " | grep \'" + searchTerm + "\'" + " | head -n 1"
             elif mode == 'num':
-                cmd = cmd + " | grep -c \'" + searchTerm + "\'"
-                num = self.sendline( cmd )
+                cmd = cmd + " | grep \'" + searchTerm + "\' | wc -l"
+                num = self.lineCount( cmd )
                 return num
             elif mode == 'total':
                 totalLines = self.lineCount( "cat /opt/onos/log/karaf.log | wc -l" )