--- USAGE.orig
+++ USAGE
@@ -68,8 +68,8 @@
 
   -m, --multisample <multisample grid>
 	Enables additional antialiasing passes.
-	Specifing 2 or 3 will provide an additional pass with 2x2 or 3x3 samples per pixel.
-	Specifiying 4 (of higher) will provide a 2x2 and a final 4x4 pass.
+	Specifying 2 or 3 will provide an additional pass with 2x2 or 3x3 samples per pixel.
+	Specifying 4 (of higher) will provide a 2x2 and a final 4x4 pass.
 	Specifying 1 provides the default behaviour of one sample per pixel.
 	For best rendering quality also specify -j.