Uppercasing some stray lowercase keywords for code consistency
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index 745fb7c..c6d7c29 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -1177,7 +1177,7 @@
 	{
 		if ( ! is_numeric($str))
 		{
-			return false;
+			return FALSE;
 		}
 		return $str > $min;
 	}
@@ -1195,7 +1195,7 @@
 	{
 		if ( ! is_numeric($str))
 		{
-			return false;
+			return FALSE;
 		}
 		return $str < $max;
 	}