Bad references reported to incorrect contract

When running against the argent infrastructure contracts we get the following reports for `strings` library:

```
INFO:Detectors:
0: strings.ord(strings.slice) (wallet/BaseWallet.sol) performs a multiplication on the result of a division:
-b = word / divisor (wallet/BaseWallet.sol)
-ret = b (wallet/BaseWallet.sol)
-ret = (ret * 64) | (b & 0x3F) (wallet/BaseWallet.sol)
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#divide-before-multiply
```
and
```
0: strings.len(bytes32).ret (wallet/BaseWallet.sol#87) is a local variable never initialized
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#uninitialized-local-variables
```

The references these point to however are not in the `strings` library contract but in `BaseWallet.sol` which does not import or use the library in any way.