Fix the mapping file name on the scan output

[elyezer]

When scan command finishes, it prints the following message stating that the mapping file was created:

Scanning has completed. The mapping has been stored in file '1_host_auth_map'. The facts have been stored in '/home/elyezer/code/rho/report.csv'

But looking into the data directory we only have 1_host_auth_mapping:

$ ls data
1_host_auth_mapping  1_hosts.yml  credentials  ping-inventory.yml  ping_log  profiles

Fix either the output message or the file name to be consistent. Also it could print the mapping file path prefixing it with data/ which will point to the right place.