Fixed bug where cursor was positioned to the second character instead of the first, after reading a file

editor.c

@@ -113,7 +113,7 @@ int main(int argc, char** argv) {
 			return -10;
 		}
 
-		while (num_of_chars > 1) {
+		while (num_of_chars > 0) {
 			buffer_left(buffer);
 			num_of_chars--;
 		}