Fix build failure on FreeBSD
Fix build failure on FreeBSD

__fsdev_init() for FreeBSD does not declare the variable 'e', which
generates a compiler error. Fix this by declaring 'e' before using it.

Fixes: bc36258ac ("Merge pull request #1584 from evgenyz/fix-reallocs")

OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap