Fix a comment typo
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index c175c67..5f5b5f9 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -178,7 +178,7 @@
* $matches[1] contains our hex color value, but it might be
* both in the full 6-length format or the shortened 3-length
* value.
- * We'll later need the full version, so if we keep it if it's
+ * We'll later need the full version, so we keep it if it's
* already there and if not - we'll convert to it. We can
* access string characters by their index as in an array,
* so we'll do that and use concatenation to form the final