update docstrings to match changes

pipenv/cli.py

@@ -99,7 +99,7 @@ def ensure_project(three=None, python=None):
 
 
 def ensure_proper_casing():
-    """Ensures proper casing of Pipfile packages, writes to disk."""
+    """Ensures proper casing of Pipfile packages, writes changes to disk."""
     p = project.parsed_pipfile
 
     def proper_case_section(section):
@@ -257,11 +257,12 @@ def do_download_dependencies(dev=False, only=False, bare=False):
 
     return name_map
 
+
 def parse_install_output(output):
     """Parse output from pip download to get name and file mappings
     for all dependencies and their sub dependencies.
 
-    This is required for proper file hashing with --require-hashes
+    This is required for proper file hashing with --require-hashes.
     """
     output_sections = output.split('Collecting ')
     names = []

pipenv/utils.py

@@ -15,7 +15,6 @@ def format_toml(data):
     return '\n'.join(data)
 
 
-
 def multi_split(s, split):
     """Splits on multiple given separators."""
     for r in split:
@@ -131,6 +130,7 @@ def mkdir_p(newdir):
         if tail:
             os.mkdir(newdir)
 
+
 def is_required_version(version, specified_version):
     """Check to see if there's a hard requirement for version
     number provided in the Pipfile.