meson.build: Don't depend on getrevision.sh

`getrevision.sh` isn't included in exported source code (including
GitHub's auto-generated tarballs and ZIPs). Per issue #95, the build
shouldn't depend on getrevision.sh for this reason. Previously,
however, Flashrom would not build from exported source using Meson
due to it requiring `getrevision.sh`. This patch has Meson use the
intended `getversion.sh` instead.

Signed-off-by: Samuel R. Messner <powpowd@gmail.com>
Change-Id: Id8601155b35f0299200c27d0278606127410ff16
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/62061
Original-Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Original-Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/71765
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/meson.build b/meson.build
index f332b8c..2fc7fbf 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('flashromutils', 'c',
-  version : run_command('util/getversion.sh', '-v').stdout().strip(),
+  version : run_command('util/getversion.sh', '--version').stdout().strip(),
   license : 'GPL-2.0',
   meson_version : '>=0.50.0',
   default_options : ['warning_level=2', 'c_std=c99'],
@@ -395,7 +395,7 @@
 )
 
 conf.set('VERSION', version)
-conf.set('MAN_DATE', run_command('util/getrevision.sh', '--date', 'flashrom.8.tmpl').stdout().strip())
+conf.set('MAN_DATE', run_command('util/getversion.sh', '--man-date').stdout().strip())
 configure_file(
   input : 'flashrom.8.tmpl',
   output : 'flashrom.8',