Use 3.6 instead of 3.5 in float fract() documentation

[SOF3]

It is not self-explanatory whether the fract() function inverts the fractional part of negative numbers. This change clarifies this possible question (so that it is .6 not .4)

[rust-highfive]

r? @LukasKalbertodt

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[rust-highfive]

The job mingw-check of your PR failed (pretty log, raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

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2020-01-14T18:09:01.8103983Z ##[command]git remote add origin https://github.com/rust-lang/rust
2020-01-14T18:09:01.8191464Z ##[command]git config gc.auto 0
2020-01-14T18:09:01.8267174Z ##[command]git config --get-all http.https://github.com/rust-lang/rust.extraheader
2020-01-14T18:09:01.8335209Z ##[command]git config --get-all http.proxy
2020-01-14T18:09:01.8469877Z ##[command]git -c http.extraheader="AUTHORIZATION: basic ***" fetch --force --tags --prune --progress --no-recurse-submodules --depth=2 origin +refs/heads/*:refs/remotes/origin/* +refs/pull/68223/merge:refs/remotes/pull/68223/merge

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

[varkor]

@bors r+ rollup

[bors]

📌 Commit d43615f has been approved by varkor

[Dylan-DPC-zz]

Failed in rollup #68242

@bors r-

[rust-highfive]

The job x86_64-gnu-llvm-7 of your PR failed (pretty log, raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

2020-01-15T14:56:28.3060452Z ##[command]git remote add origin https://github.com/rust-lang/rust
2020-01-15T14:56:28.3071149Z ##[command]git config gc.auto 0
2020-01-15T14:56:28.3073155Z ##[command]git config --get-all http.https://github.com/rust-lang/rust.extraheader
2020-01-15T14:56:28.3074822Z ##[command]git config --get-all http.proxy
2020-01-15T14:56:28.3077828Z ##[command]git -c http.extraheader="AUTHORIZATION: basic ***" fetch --force --tags --prune --progress --no-recurse-submodules --depth=2 origin +refs/heads/*:refs/remotes/origin/* +refs/pull/68223/merge:refs/remotes/pull/68223/merge

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

[mati865]

GitHub has broke spacing in the last commit, you should make is as a fixup to the previous one.

[varkor]

@bors r+

[bors]

📌 Commit 33bc9ef has been approved by varkor