Пакет rpm-build: Информация

- E2K: partial backport of 4.0.4-alt170.3
  + backport support of tilde in version & release (ALT#46585), thx vt@
  + platform.in: add more systemd macros
  + excluding 4.0.4.186-alt1 merge and debuginfo bits:
    that'd rather need porting e2k patches onto the current p10 source tree

- E2K: backports from 4.0.4-alt170.2 except debuginfo and archaelogy
  (which is a backport of 4.0.4.186-alt1 bits except LTO in its turn):
  + use file4 instead of file
  + platform.in: added %pre_service_stop_posttrans_start and
    %post_service_posttrans_restart
  + build: fixed double timezone adjustment of CHANGELOGTIME tag value
  + backport packaging '%pretrans' Lua scriptlets (ALT#36628)
  + systemd-services.req.in: fixed autoreq for systemd units

- scripts: replaced "egrep" with "grep -E", "fgrep" with "grep -F" (ldv@).