doc: Mention split_whitespace in split doc

[JIghtuse]

No description provided.

[rust-highfive]

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[alexcrichton]

@bors: r+ 3120bfe1088346bce1512300b343782d02c9ea9a

Thanks!

[steveklabnik]

@bors: r-

[steveklabnik]

@JIghtuse would you mind writing a link to link this method to the definition, so users don't have to search for it?

///
/// Use [`.split_whitespace()`][split_whitespace] for this behavior.
///
/// [split_whitespace]: #method.split_whitespace

would follow the idiom.

Thanks! r=me after, @alexcrichton or anyone else

[JIghtuse]

@steveklabnik sure. I just didn't know how to do that.

[JIghtuse]

r? @steveklabnik

[steveklabnik]

No worries! Thanks so much. 👍

[steveklabnik]

@bors: r+ rollup

[bors]

📌 Commit 836be40 has been approved by steveklabnik

[bors]

⌛ Testing commit 836be40 with merge c056cbb...

[bors]

☀️ Test successful - auto-linux-32-nopt-t, auto-linux-32-opt, auto-linux-64-nopt-t, auto-linux-64-opt, auto-linux-64-x-android-t, auto-mac-32-opt, auto-mac-64-nopt-t, auto-mac-64-opt, auto-win-gnu-32-nopt-t, auto-win-gnu-32-opt, auto-win-gnu-64-nopt-t, auto-win-gnu-64-opt, auto-win-msvc-32-opt, auto-win-msvc-64-opt