test_upstream_compat: Use more f-strings

test_upstream_compat.py

@@ -58,8 +58,7 @@ def test_qt_versions(args):
         # Compare
         if pkgver == pkgver_upstream:
             continue
-        failed.append(pkgname + ": " + pkgver + " != " +
-                      pkgver_upstream)
+        failed.append(f"{pkgname}: {pkgver} != {pkgver_upstream}")
 
     assert [] == failed
 
@@ -97,13 +96,13 @@ def test_aportgen_versions(args):
                     continue
 
             # Compare the version
-            print("Checking " + path)
+            print(f"Checking {path}")
             apkbuild = pmb.parse.apkbuild(path)
             version = apkbuild["pkgver"] + "-r" + apkbuild["pkgrel"]
             if version != version_upstream:
-                failed.append(apkbuild["pkgname"] + ": " + version +
-                              " != " + version_upstream +
-                              " (from " + pkgname + ")")
+                failed.append(
+                    f"{apkbuild["pkgname"]}: {version} != {version_upstream} (from {pkgname})"
+                )
                 continue
 
     assert [] == failed