Address comments from code review

    - Removed all grep_str's from onosclidriver
    - fix some sendline issues
    - refactor HA tests a bit
    - fix typos
diff --git a/TestON/drivers/common/cli/emulator/lincoedriver.py b/TestON/drivers/common/cli/emulator/lincoedriver.py
index 4d2cc01..6f7ce3a 100644
--- a/TestON/drivers/common/cli/emulator/lincoedriver.py
+++ b/TestON/drivers/common/cli/emulator/lincoedriver.py
@@ -293,8 +293,8 @@
         '''
         try:
             #Send CTRL+C twice to exit CLI
-            self.handle.sendline("\x03")
-            self.handle.sendline("\x03")
+            self.handle.send("\x03")
+            self.handle.send("\x03")
             self.handle.expect("\$")
 
         except pexpect.EOF: