Removed unused import, add whitespace around operator.

routersploit/modules/exploits/zyxel/zywall_usg_extract_hashes.py

@@ -7,8 +7,7 @@ from routersploit import (
     print_success,
     http_request,
     mute,
-    validators,
-    shell,
+    validators
 )
 
 
@@ -54,7 +53,7 @@ class Exploit(exploits.Exploit):
 
                 for line in self.script_content.split("\n"):
                     line = line.strip()
-                    m_groups = re.match(r'username (.*) password (.*) user-type (.*)', line, re.I|re.M)
+                    m_groups = re.match(r'username (.*) password (.*) user-type (.*)', line, re.I | re.M)
                     if m_groups:
                         creds.append((m_groups.group(1), m_groups.group(2), m_groups.group(3)))