Fix spelling mistake in comment
diff --git a/errors.go b/errors.go
index ab22199..f7b18b7 100644
--- a/errors.go
+++ b/errors.go
@@ -103,7 +103,7 @@
 			break
 		}
 	}
-	// get back to 0 or trim the leading seperator
+	// get back to 0 or trim the leading separator
 	file = file[i+len(sep):]
 
 	return file, line