Fix segmentation fault in yr_scanner_get_profiling_info when profiling is not enabled.
Fix segmentation fault in yr_scanner_get_profiling_info when profiling is not enabled.

hillu/yara,VirusTotal/yara,pombredanne/yara,cblichmann/yara,pombredanne/yara,wxsBSD/yara,cblichmann/yara,VirusTotal/yara,wxsBSD/yara,pombredanne/yara,cblichmann/yara,VirusTotal/yara,hillu/yara,wxsBSD/yara,pombredanne/yara,hillu/yara,VirusTotal/yara,pombredanne/yara,VirusTotal/yara,wxsBSD/yara,wxsBSD/yara,hillu/yara,cblichmann/yara,cblichmann/yara,hillu/yara