setup.py: Explicitly open the changelog file as utf-8

diff --git a/setup.py b/setup.py
index 0cc31b9ef74513404ca2a94439e7c0b1f3d293dc..4629bbd1cbe84acac5f4d47d39aa31b1394cd0e7 100755 (executable)
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@ VERSION_PY_PATH = 'gbp/version.py'
 
 def _parse_changelog():
     """Get version from debian changelog and write it to gbp/version.py"""
-    with open("debian/changelog") as f:
+    with open("debian/changelog", encoding="utf-8") as f:
         line = f.readline()
 
     # Parse version from changelog without external tooling so it can work