fixed bug in unindent command

c_indent.c

@@ -18,6 +18,7 @@ c_unindent(char *c) {
 	for(int i = 0; i < ROW_SIZE - 1; i++) {
 		row->text[i] = row->text[i + 1];
 	}
-	row->text[ROW_SIZE] = 0;
+	row->text[ROW_SIZE - 1] = 0;
 }
 
+