From 1e30d1da47f24190a4e0ceed3631fff529f171af Mon Sep 17 00:00:00 2001
From: Scott Lahteine <sourcetree@thinkyhead.com>
Date: Mon, 5 Dec 2016 08:25:09 -0600
Subject: [PATCH] Simplify itostr4sign

- This function becomes obsolete if ftostr4sign is re-written.
---
 Marlin/utility.cpp | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/Marlin/utility.cpp b/Marlin/utility.cpp
index bc68967e9..8f06817c0 100644
--- a/Marlin/utility.cpp
+++ b/Marlin/utility.cpp
@@ -74,25 +74,32 @@ void safe_delay(millis_t ms) {
     return str;
   }
 
-  // Convert signed int to rj string with _123, -123, _-12, or __-1 format
+  // Convert signed int to rj string with 1234, _123, -123, _-12, or __-1 format
   char *itostr4sign(const int& x) {
-    int xx = abs(x), sign = 0;
-    if (xx >= 100) {
+    int xx = abs(x);
+    if (x >= 1000) {
+      conv[0] = DIGIMOD(xx, 1000);
       conv[1] = DIGIMOD(xx, 100);
       conv[2] = DIGIMOD(xx, 10);
     }
     else {
-      conv[0] = ' ';
-      if (xx >= 10) {
-        sign = 1;
+      if (xx >= 100) {
+        conv[0] = x < 0 ? '-' : ' ';
+        conv[1] = DIGIMOD(xx, 100);
         conv[2] = DIGIMOD(xx, 10);
       }
       else {
-        conv[1] = ' ';
-        sign = 2;
+        conv[0] = ' ';
+        if (xx >= 10) {
+          conv[1] = x < 0 ? '-' : ' ';
+          conv[2] = DIGIMOD(xx, 10);
+        }
+        else {
+          conv[1] = ' ';
+          conv[2] = x < 0 ? '-' : ' ';
+        }
       }
     }
-    conv[sign] = x < 0 ? '-' : ' ';
     conv[3] = DIGIMOD(xx, 1);
     conv[4] = '\0';
     return conv;