Wrong logic in computeLatitudePrecision

[sbr61]

computeLatitudePrecision uses a wrong logic:

open-location-code/java/src/main/java/com/google/openlocationcode/OpenLocationCode.java

Line 683 in bb54a57

if (codeLength <= CODE_PRECISION_NORMAL) {

Instead, it should compare

codeLength <= PAIR_CODE_LENGTH

The two constants have different semantics, but the same value (namely 10). So this issue is about code cleanness, not about a wrong run-time behavior.

When fixed, CODE_PRECISION_NORMAL would just determine the default precision for the two-parameter encode. It might then be increased to 11 to match the OLC precision shown by Google Maps for pins, which is about the GPS accuracy in phones.