protocol: Include whitespace when reading names

[digitalcircuit]

In short

• Modify PR_SCANFMT to not skip whitespace in protocol names
  • Fixes recently added protocols with spaces
  • Allows more flexibility in naming protocols

NOTE: As I have not (yet) set up an OpenWRT build environment, this is not tested.

Criteria	Rank	Reason
Impact	★★☆ 2/3	User-facing fix for default protocols, matches expectations
Risk	★★☆ 2/3	Untested, could impact existing protocol name configurations
Intrusiveness	★☆☆ 1/3	Small set of changes, shouldn't interfere with other pull requests

Details

Include whitespace when reading protocol names via fscanf() by including all characters except for a newline, still limited to 32 bytes.

This fixes the new protocols added in a recent commit which include spaces in the names, and it allows for more flexibility in general.

References

• https://stackoverflow.com/questions/1950057/can-fscanf-read-whitespace
• http://www.cplusplus.com/reference/cstdio/fscanf/

NOTE: This change has not been personally tested and may need further modifications.