Use https:// for all project links where available (#267)
diff --git a/examples/c-to-c.py b/examples/c-to-c.py
index 88e66c5..cc14598 100644
--- a/examples/c-to-c.py
+++ b/examples/c-to-c.py
@@ -4,7 +4,7 @@
# Example of using pycparser.c_generator, serving as a simplistic translator
# from C to AST and back to C.
#
-# Eli Bendersky [http://eli.thegreenplace.net]
+# Eli Bendersky [https://eli.thegreenplace.net/]
# License: BSD
#------------------------------------------------------------------------------
from __future__ import print_function