Imports of package bug

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
runtimePackage runtime contains operations that interact with Go's runtime system, such as functions to control goroutines.
runtime/debugPackage debug contains facilities for programs to debug themselves while they are running.
sortPackage sort provides primitives for sorting slices and user-defined collections.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.