Imports of loong64spec command

PathSynopsis
bytesPackage bytes implements functions for the manipulation of byte slices.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
logPackage log implements a simple logging package.
mathPackage math provides basic constants and mathematical functions.
osPackage os provides a platform-independent interface to operating system functionality.
regexpPackage regexp implements regular expression search.
rsc.io/pdfPackage pdf implements reading of PDF files.
sortPackage sort provides primitives for sorting slices and user-defined collections.
strconvPackage strconv implements conversions to and from string representations of basic data types.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.