Memcache issues

[PatelUtkarsh]

Running wp command throws this warning.

Example: ee4 wp test2.com cache type

PHP Warning:  Module 'memcache' already loaded in Unknown on line 0
Default

Also, Memcache seems to be not configured properly, See below:

$ ee4 wp test2.com cache add foo 1
PHP Warning:  Module 'memcache' already loaded in Unknown on line 0
Success: Added object 'foo' in group 'default'.

$ ee4 wp test2.com cache get foo
PHP Warning:  Module 'memcache' already loaded in Unknown on line 0
Error: Object with key 'foo' and group 'default' not found.
Failed to run with the arguments provided: wp test2.com cache get foo

Usage:  ee4 [Global Options|Commands]

Subtasks:

• [x] Config memcache
• [x] Fix memcache error PHP Warning: Module 'memcache' already loaded in Unknown on line 0
• [ ] When wp-cli command fails with error it should not show ee4 help.