Remove added newline

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = subprompt
-version = 0.0.6
+version = 0.0.7
 author = Augusto Lenz Gunsch
 author_email = augusto@augustogunsch.com
 description = Substitute Regex in files with prompt confirmation

src/subprompt/subprompt.py

@@ -160,7 +160,6 @@ class Filter:
         if hash_old.digest() != hash_new.digest():
             with open(fname, 'w') as file:
                 file.write(new_contents)
-                file.write('\n')
 
 def run(args):
     parser = argparse.ArgumentParser(description='Modifies lines matched by a regex interactively')