Typos

tests/client_http.py

@@ -1,5 +1,5 @@
 #!/usr/bin/python3
-"""Implementation of a HTTP client"""
+"""Implementation of an HTTP client"""
 
 import os
 import sys

tests/exec.py

@@ -29,7 +29,7 @@ def main() -> None:
             # all exceptions are critical
             print(err, file=sys.stderr)
     else:
-        print("Usage:\n\t{} COMMAND [ARG]...'".format(sys.argv[0]), file=sys.stderr)
+        print("Usage:\n\t{} COMMAND [ARG]...".format(sys.argv[0]), file=sys.stderr)
     sys.exit(1)
 
 

tests/server_http.py

@@ -1,5 +1,5 @@
 #!/usr/bin/python3
-"""Implementation of a HTTP server"""
+"""Implementation of an HTTP server"""
 
 import argparse
 import os

tests/server_http.pyw

@@ -1,5 +1,5 @@
 #!/usr/bin/python3
-"""Windows: Implementation of a HTTP server"""
+"""Windows: Implementation of an HTTP server"""
 
 import argparse
 import os

tests/start_server.py

@@ -51,7 +51,7 @@ def clear_catalog(certs_path) -> None:
         file.write(random_hex)
 
 def main() -> None:
-    """Wait for all tests certificate, compute leafhash"""
+    """Wait for all test certificates and compute leaf hash"""
 
     parser = argparse.ArgumentParser()
     parser.add_argument(