emphasize that it's the *unit* tests that are run in %check

OBS-URL: https://build.opensuse.org/package/show/Base:System/systemd?expand=0&rev=1523

systemd.changes

@@ -1,7 +1,7 @@
 -------------------------------------------------------------------
 Thu May 16 10:01:20 UTC 2024 - Radoslav Kolev <radoslav.kolev@suse.com>
 
-- systemd.spec: enable tests during build 
+- systemd.spec: enable unit tests during build 
 
 -------------------------------------------------------------------
 Thu May 16 08:27:27 UTC 2024 - Franck Bui <fbui@suse.com>

systemd.spec

@@ -139,7 +139,7 @@ BuildRequires:  pam-devel
 BuildRequires:  python3-Jinja2
 BuildRequires:  systemd-rpm-macros
 BuildRequires:  pkgconfig(blkid) >= 2.26
-#The following packages are only required by the tests during %check
+# The following packages are only required by the execution of the unit tests during %%check
 BuildRequires:  acl
 BuildRequires:  distribution-release
 BuildRequires:  python3-pefile
@@ -1094,8 +1094,8 @@ rm -fr %{buildroot}%{_docdir}/systemd
 %systemd_pre systemd-journald-audit.socket
 %systemd_pre systemd-userdbd.service
 
-#Execute the tests
 %check
+# Run the unit tests.
 %meson_test
 
 %post