Refactor: More f-string for kittens

kittens/transfer/librsync.py

@@ -155,12 +155,12 @@ def develop() -> None:
     import sys
     src = sys.argv[-1]
     sig_loader = LoadSignature()
-    with open(src + '.sig', 'wb') as f:
+    with open(f'{src}.sig', 'wb') as f:
         for chunk in signature_of_file(src):
             sig_loader.add_chunk(chunk)
             f.write(chunk)
     sig_loader.commit()
-    with open(src + '.delta', 'wb') as f, PatchFile(src, src + '.output') as patcher:
+    with open(f'{src}.delta', 'wb') as f, PatchFile(src, f'{src}.output') as patcher:
         for chunk in delta_for_file(src, sig_loader.signature):
             f.write(chunk)
             patcher.write(chunk)

kittens/transfer/utils.py

@@ -45,7 +45,7 @@ def render_path_in_width(path: str, width: int) -> str:
     if wcswidth(path) <= width:
         return path
     x = truncate_point_for_length(path, width - 1)
-    return path[:x] + '…'
+    return f'{path[:x]}…'
 
 
 def render_seconds(val: float) -> str: