Follow Fedora Packaging Guidelines: %global vs. %define

`%global` is preferred to `%define` according to FPG:

    https://fedoraproject.org/wiki/Packaging:Guidelines#.25global_preferred_over_.25define

packaging/template.spec

@@ -1,6 +1,6 @@
-%define sfincb %{_datadir}/shellfu/include-bash
-%define shellfu_req shellfu >= 0.10.4, shellfu < 0.11
-%define saturnin_req shellfu-bash-saturnin >= 0.4.10, shellfu-bash-saturnin < 0.5
+%global sfincb %{_datadir}/shellfu/include-bash
+%global shellfu_req shellfu >= 0.10.4, shellfu < 0.11
+%global saturnin_req shellfu-bash-saturnin >= 0.4.10, shellfu-bash-saturnin < 0.5
 
 Name:           __MKIT_PROJ_PKGNAME__
 Version:        __MKIT_PROJ_VERSION__