illumos gate

Building with gcc 6:

../common/cfg.c: In function 'cfg_get_cstring':
../common/cfg.c:507:6: error: this 'else' clause does not guard... [-Werror=misleading-indentation]
      else
      ^~~~
../common/cfg.c:518:7: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else'
       strncpy(value, p, value_len);
       ^~~~~~~
cc1: all warnings being treated as errors