Add Linux swap partition and MS reserved partition descriptions. While here: o  Make the UUIDs static to avoid runtime initialization, o  Rename ext to mslinux, o  Replace the use of memcmp() with uuid_equal(), o  Various style(9) improvements, o  Order the comparisons based on importance, o  Remove the word partition from all the descriptions, o  Other description improvements.
Add Linux swap partition and MS reserved partition descriptions.
While here:
o  Make the UUIDs static to avoid runtime initialization,
o  Rename ext to mslinux,
o  Replace the use of memcmp() with uuid_equal(),
o  Various style(9) improvements,
o  Order the comparisons based on importance,
o  Remove the word partition from all the descriptions,
o  Other description improvements.

Includes patch from: T. Muthu Mohan < Muthu_T at dell dot com >

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