Minor cleanup in some of the shell scripts in the "tools" directory.
No functional changes.

 * Description header formatting
 * Added missing new line at the end of a file
 * Removed extra new lines at the end of a file
diff --git a/tools/test/bin/onos-verify-cell b/tools/test/bin/onos-verify-cell
index 9a5f5a9..4b3a0ee 100755
--- a/tools/test/bin/onos-verify-cell
+++ b/tools/test/bin/onos-verify-cell
@@ -1,11 +1,11 @@
 #!/bin/bash
-#-------------------------------------------------------------------------------
+# -----------------------------------------------------------------------------
 # Verifies connectivity to each node in ONOS cell.
-#-------------------------------------------------------------------------------
+# -----------------------------------------------------------------------------
 
 [ ! -d "$ONOS_ROOT" ] && echo "ONOS_ROOT is not defined" >&2 && exit 1
 . $ONOS_ROOT/tools/build/envDefaults
 
 for node in $(env | sort | egrep "OC[0-9N]+" | cut -d= -f2); do
     printf "%s: " $node; ssh -n -o PasswordAuthentication=no $ONOS_USER@$node date
-done
\ No newline at end of file
+done