[8020] test -v isn't portable

[gavinsmith0123]

Revision: 8020
          http://svn.sv.gnu.org/viewvc/?view=rev&root=texinfo&revision=8020
Author:   gavin
Date:     2018-08-07 14:12:51 -0400 (Tue, 07 Aug 2018)
Log Message:
-----------
test -v isn't portable

Modified Paths:
--------------
    trunk/info/t/Init-test.inc

Modified: trunk/info/t/Init-test.inc
===================================================================
--- trunk/info/t/Init-test.inc  2018-08-07 17:51:50 UTC (rev 8019)
+++ trunk/info/t/Init-test.inc  2018-08-07 18:12:51 UTC (rev 8020)
@@ -139,9 +139,10 @@
 }
 
 # Initialize test of interactive operation
+initialization_done=0
 init_interactive_test ()
 {
-  test -v initialization_done && return 0
+  test $initialization_done -eq 1 && return 0
   initialization_done=1
 
   # Skip test if pseudotty wasn't built