Result of salloc_init is not checked in main()

[Roman Tsisyk]

# twice as high).
#
slab_alloc_arena = 2.0 <!-- Some big number

roman@work:test/var$ ../../src/box/tarantool_box
2013-07-23 13:36:59.752 [16897] 1/sched salloc.cc:141 E> mmap: Cannot allocate memory <!-- WTF
2013-07-23 13:36:59.754 [16897] 1/sched I> space 0 successfully configured
2013-07-23 13:36:59.754 [16897] 1/sched I> recovery start

localhost> INSERT into t0 VALUES(1,2,3)
reconnected
Insert ERROR, Failed to allocate 27 bytes in slab allocator for tuple (ER_MEMORY_ISSUE)

tarantool.cc:846:
 salloc_init(cfg.slab_alloc_arena * (1 << 30) /* GB */,
      cfg.slab_alloc_minimal, cfg.slab_alloc_factor);