tweak, no "err°"

Author: thinkyhead

Marlin/src/lcd/dogm/status_screen_DOGM.cpp

@@ -192,18 +192,14 @@
 #define PROGRESS_BAR_WIDTH (LCD_PIXEL_WIDTH - PROGRESS_BAR_X)
 
 FORCE_INLINE void _draw_centered_temp(const celsius_t temp, const uint8_t tx, const uint8_t ty) {
-  const char *str;
-  uint8_t len;
   if (temp > 0) {
-    str = i16tostr3rj(temp);
-    len = str[0] != ' ' ? 3 : str[1] != ' ' ? 2 : 1;
+    const char *str = i16tostr3left(temp);
+    uint8_t len = strlen(str);
+    lcd_put_u8str(tx - len * (INFO_FONT_WIDTH) / 2 + 1, ty, str);
+    lcd_put_lchar(LCD_STR_DEGREE[0]);
   }
-  else {
-    str = "err";
-    len = 3;
-  }
-  lcd_put_u8str(tx - len * (INFO_FONT_WIDTH) / 2 + 1, ty, &str[3-len]);
-  if (temp > 0) lcd_put_lchar(LCD_STR_DEGREE[0]);
+  else
+    lcd_put_u8str(tx - len * (INFO_FONT_WIDTH) / 2 + 1, ty, F("err"));
 }
 
 #if DO_DRAW_FLOWMETER