Reduce stack usage by Con_CenterPrintf

Signed-off-by: bones_was_here <bones_was_here@xonotic.au>

console.c

@@ -1547,7 +1547,6 @@ void Con_CenterPrintf(int maxLineLength, const char *fmt, ...)
 {
  va_list argptr;
  char msg[MAX_INPUTLINE]; // the original message
- char line[MAX_INPUTLINE]; // one line from the message
  char spaces[21]; // buffer for spaces
  char *msgCursor, *lineEnding;
  int lineLength, msgLength;
@@ -1570,24 +1569,26 @@ void Con_CenterPrintf(int maxLineLength, const char *fmt, ...)
  lineEnding = strchr(msgCursor, '\n');
  if (lineEnding)
  {
- lineLength = dp_ustr2stp(line, sizeof(line), msgCursor, lineEnding - msgCursor) - line;
- msgCursor = lineEnding + 1;
+ lineLength = lineEnding - msgCursor; // print just the line
+ lineEnding++; // set cursor to next character after new line
  }
  else // last line
  {
- lineLength = dp_strlcpy(line, msgCursor, sizeof(line));
- msgCursor = msg + msgLength;
+ lineLength = msgLength; // print entire message
+ lineEnding = msgCursor + lineLength; // set next line cursor to terminator
  }
 
  if (lineLength < maxLineLength)
  {
  indentSize = min(sizeof(spaces) - 1, (size_t)(maxLineLength - lineLength) / 2);
  memset(spaces, ' ', indentSize);
  spaces[indentSize] = 0;
- Con_MaskPrintf(CON_MASK_HIDENOTIFY, "%s%s\n", spaces, line);
+ Con_MaskPrintf(CON_MASK_HIDENOTIFY, "%s%.*s\n", spaces, lineLength, msgCursor);
  }
  else
- Con_MaskPrintf(CON_MASK_HIDENOTIFY, "%s\n", line);
+ Con_MaskPrintf(CON_MASK_HIDENOTIFY, "%.*s\n", lineLength, msgCursor);
+ msgLength -= lineEnding - msgCursor; // Consume all characters until end of line
+ msgCursor = lineEnding; // Update message cursor
  }
 }