libril: Fix element count

This lines should drop every 5th element (#5,#10,#15,...).
At the moment it is dropping elements #6, #11, #16, as it start from 0
and the list start from 1. So let's match it up.

Thanks to Tobias Heinemann for the idea.

Change-Id: Idc2904040119716e666ea0fe320cde1d45869ee5

ril/libril/ril.cpp

@@ -2305,7 +2305,7 @@ static int responseStrings(Parcel &p, void *response, size_t responselen, bool n
         /* each string*/
         startResponse;
         for (int i = 0 ; i < numStrings ; i++) {
-            if (network_search && (i % 5 == 0))
+            if (network_search && ((i + 1) % 5 == 0))
                 continue;
             appendPrintBuf("%s%s,", printBuf, (char*)p_cur[i]);
             writeStringToParcel (p, p_cur[i]);