[gi-docgen] utils: Do not append a period unless we end with text

[Emmanuele Bassi <ebassi src gnome org>]

commit cb76996ba9ef7a1634ab9bde30c77c3bbb47c8db
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed May 26 18:18:11 2021 +0100

    utils: Do not append a period unless we end with text
    
    If the documentation block ends with something that is not a letter then
    it's likely we're going to break something, like a code block marker.

 gidocgen/utils.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gidocgen/utils.py b/gidocgen/utils.py
index c32eecc..6ccc984 100644
--- a/gidocgen/utils.py
+++ b/gidocgen/utils.py
@@ -690,7 +690,7 @@ def preprocess_docs(text, namespace, summary=False, md=None, extensions=[], plai
 
     # Append a period, if one isn't there already
     last_line = processed_text[-1]
-    if last_line and last_line[-1] != '.':
+    if last_line and last_line[-1].isalpha():
         processed_text[-1] = ''.join([last_line, '.'])
 
     if md is None: