File sriv.patch of Package tk-theme-sriv

diff -urN sriv0.5.orig/pkgIndex.tcl sriv0.5/pkgIndex.tcl
--- sriv0.5.orig/pkgIndex.tcl	1970-01-01 01:00:00.000000000 +0100
+++ sriv0.5/pkgIndex.tcl	2020-07-09 14:54:11.751948748 +0200
@@ -0,0 +1 @@
+package ifneeded ttk::theme::sriv 0.5 [list source [file join $dir sriv.tcl]]