[Bug gcov-profile/45272] comment about sqrt() implementation wrong: it is not from Carmack

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45272
Bug 45272 depends on bug 45273, which changed state.

Bug 45273 Summary: [13/14/15 Regression] The compiler depends on the host double (-fprofile-correction only)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45273

           What    |Removed                     |Added
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             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED