changed: no need to manually specify test data in update script

rather specify it as properties on the tests themself and extract
using some awk-ing.

tests/getprop.awk

@@ -0,0 +1,10 @@
+$1 ~ search {
+    for (i = 3; i <= NF; ++i) {
+        if ($i == prop) {
+            val = $(i + 1)
+            gsub(/"/, "", val)
+            print val
+            exit
+        }
+    }
+}