shell testsuite: add trailing newline to var_unbackslash1.tests

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/hush_test/hush-vars/var_unbackslash1.tests b/shell/hush_test/hush-vars/var_unbackslash1.tests
index cddd8ae..a4665e4 100755
--- a/shell/hush_test/hush-vars/var_unbackslash1.tests
+++ b/shell/hush_test/hush-vars/var_unbackslash1.tests
@@ -32,4 +32,4 @@
 (\
 42\
 )\
-)"
\ No newline at end of file
+)"