Issue #524 Shim unable to locate grubx64 in PXE boot mode when grubx…

[Alberto-Perez-Guevara]

…64 is stored in a different file path.

Problem: grubx64 not found when file path contains '\'

Root Cause: parseDhcp4 function is unable to handle file path with '\'

Changes to be committed: modified: netboot.c

[Alberto-Perez-Guevara]

Hi any feedback on this is most welcome

[p3ck]

This would be really helpful for our test automation. Please consider

[vathpela]

Pushed as 0bfc3978f4a6a10e4427fdab222b0e50c3c7283c.