[gtk-doc] mkhtml2: simplify looking up title xpath expressions

[Stefan Sauer <stefkost src gnome org>]

commit a2792d7abecdafba4a7826aede14fd4f262d1260
Author: Stefan Sauer <ensonic users sf net>
Date:   Thu Apr 26 21:40:00 2018 +0200

    mkhtml2: simplify looking up title xpath expressions

 gtkdoc/mkhtml2.py |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)
---
diff --git a/gtkdoc/mkhtml2.py b/gtkdoc/mkhtml2.py
index a3d5afa..cbdcf82 100644
--- a/gtkdoc/mkhtml2.py
+++ b/gtkdoc/mkhtml2.py
@@ -185,11 +185,7 @@ def gen_chunk_name(node, chunk_params):
 
 def get_chunk_titles(module, node):
     tag = node.tag
-    if tag not in TITLE_XPATHS:
-        # Use defaults
-        (title, subtitle) = TITLE_XPATHS['_']
-    else:
-        (title, subtitle) = TITLE_XPATHS[tag]
+    (title, subtitle) = TITLE_XPATHS.get(tag, TITLE_XPATHS['_'])
 
     ctx = {
         'module': module,