UI: fix indent handling on top line

Author: chrisws

ide/android/assets/main.bas

@@ -73,7 +73,7 @@ sub do_about()
   print
   print "Version "; sbver
   print
-  print "Copyright (c) 2002-2015 Chris Warren-Smith"
+  print "Copyright (c) 2002-2016 Chris Warren-Smith"
   print "Copyright (c) 1999-2006 Nic Christopoulos" + chr(10)
   print "http://smallbasic.sourceforge.net" + chr(10)
   print "SmallBASIC comes with ABSOLUTELY NO WARRANTY. ";

src/ui/textedit.cpp

@@ -973,7 +973,7 @@ void TextEditInput::editEnter() {
   char spaces[LINE_BUFFER_SIZE];
   int start = lineStart(_state.cursor);
   int prevLineStart = lineStart(start - 1);
-  if (prevLineStart) {
+  if (prevLineStart >= 0) {
     int indent = getIndent(spaces, sizeof(spaces), prevLineStart);
     if (indent) {
       _buf.insertChars(_state.cursor, spaces, indent);