[gtk/layout-manager-transform-demo] css: Fix parsing of scientific notation

[Matthias Clasen <matthiasc src gnome org>]

commit 245106993387eab3d4ca4c4800a125370ee7cd09
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Aug 29 12:12:09 2020 -0400

    css: Fix parsing of scientific notation
    
    The parser got its chars mixed up while parsing numbers
    like 2.3e-04.

 gtk/css/gtkcsstokenizer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/css/gtkcsstokenizer.c b/gtk/css/gtkcsstokenizer.c
index 7aa3ff25e7..4da456ad35 100644
--- a/gtk/css/gtkcsstokenizer.c
+++ b/gtk/css/gtkcsstokenizer.c
@@ -1058,7 +1058,7 @@ gtk_css_tokenizer_read_numeric (GtkCssTokenizer *tokenizer,
 
   if (data + 1 < tokenizer->end && (*data == 'e' || *data == 'E') && 
       (g_ascii_isdigit (data[1]) || 
-       (data + 2 < tokenizer->end && (data[1] == '+' || data[2] == '-') && g_ascii_isdigit (data[2]))))
+       (data + 2 < tokenizer->end && (data[1] == '+' || data[1] == '-') && g_ascii_isdigit (data[2]))))
     {
       is_int = FALSE;
       data++;