Compare kernel dump header magic with textdump magic using strncmp() rather than the memcmp() which is used for regular dumps: the textdump string is one character shorter, so we need to stop comparing at the end of the string.
Compare kernel dump header magic with textdump magic using strncmp()
rather than the memcmp() which is used for regular dumps: the
textdump string is one character shorter, so we need to stop
comparing at the end of the string.

Use independent version checking logic for architecture-specific
version number vs. textdump version number, as the version sequences
may (someday) differ.

Run into by:	rrs

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase