[#ZBXNEXT-4210] Improvements to official global regular expressions

Global regexp	Expression	Comment
File systems for discovery	^(btrfs\|ext2\|ext3\|ext4\|jfs\|reiser\|xfs\|ffs\|ufs\|jfs\|jfs2\|vxfs\|hfs\|refs\|ntfs\|fat32\|zfs)${noformat}\|Parentheses are not necessary here.\| \|Storage devices for SNMP discovery\| ^(Physical memory	Virtual memory	Memory buffers	Cached memory	Swap space)${noformat}	Parentheses are not necessary. Perhaps, `(Physical\|Virtual) memory` can be used instead of `Physical memory\|Virtual memory`.
Windows service names for discovery	^(MMCSS\|gupdate\|SysmonLog\|clr_optimization_v2.0.50727_32\|clr_optimization_v4.0.30319_32)${noformat}\|Dots need to be escaped.\| \|Windows service startup states for discovery\| ^(automatic	automatic delayed)${noformat}	Parentheses are not necessary. Perhaps, can be replaced with `^automatic( delayed)?$`.

[ZBXNEXT-4210] Improvements to official global regular expressions Created: 2017 Nov 03 Updated: 2018 Jan 30
Status:	Open
Project:	ZABBIX FEATURE REQUESTS
Component/s:	Installation (I)
Affects Version/s:	4.0.0alpha1
Fix Version/s:	None