cmd: rename arcstat to zarcstat

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Colm Buckley <colm@tuatha.org>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #16357
Closes #17712

rpm/generic/zfs.spec.in

@@ -433,7 +433,7 @@ make install DESTDIR=%{?buildroot}
 find %{?buildroot}%{_libdir} -name '*.la' -exec rm -f {} \;
 %if 0%{!?__brp_mangle_shebangs:1}
 find %{?buildroot}%{_bindir} \
-    \( -name zarcsummary -or -name arcstat -or -name dbufstat \
+    \( -name zarcsummary -or -name zarcstat -or -name dbufstat \
     -or -name zilstat \) \
     -exec %{__sed} -i 's|^#!.*|#!%{__python}|' {} \;
 find %{?buildroot}%{_datadir} \
@@ -509,7 +509,7 @@ systemctl --system daemon-reload >/dev/null || true
 %{_bindir}/zvol_wait
 # Optional Python 3 scripts
 %{_bindir}/zarcsummary
-%{_bindir}/arcstat
+%{_bindir}/zarcstat
 %{_bindir}/dbufstat
 %{_bindir}/zilstat
 # Man pages