Slightly change wording in doc comment and fix typo in vec/mod.rs

[WaffleLapkin]

Suggested by @pickfire in #82760

[rust-highfive]

r? @kennytm

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[jonas-schievink]

@bors r+ rollup

[bors]

📌 Commit 3ecaf57 has been approved by jonas-schievink

[bors]

⌛ Testing commit 3ecaf57 with merge c3b3d830f673e7dfb8425b78c67e1578a74e1140...

[rust-log-analyzer]

The job dist-aarch64-apple failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

      Memory: 14 GB
      Boot ROM Version: VMW71.00V.13989454.B64.1906190538
      Apple ROM Info: [MS_VM_CERT/SHA1/27d66596a61c48dd3dc7216fd715126e33f59ae7]Welcome to the Virtual Machine
      SMC Version (system): 2.8f0
      Serial Number (system): VMSsHXbKZWuT

hw.ncpu: 3
hw.byteorder: 1234
hw.memsize: 15032385536
---
[  8%] Building CXX object Common/CMakeFiles/lldCommon.dir/Args.cpp.o
error: error: Connection to server timed outConnection to server timed out

error: Connection to server timed out
make[2]: *** [Common/CMakeFiles/lldCommon.dir/Args.cpp.o] Error 2
make[2]: *** [lib/Core/CMakeFiles/lldCore.dir/Error.cpp.o] Error 2
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [lib/Core/CMakeFiles/lldCore.dir/DefinedAtom.cpp.o] Error 2
make[1]: *** [Common/CMakeFiles/lldCommon.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
make[1]: *** [lib/Core/CMakeFiles/lldCore.dir/all] Error 2
make: *** [all] Error 2
command did not execute successfully, got: exit code: 2


build script failed, must exit now', /Users/runner/.cargo/registry/src/github.heygears.com-1ecc6299db9ec823/cmake-0.1.44/src/lib.rs:885:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
failed to run: /Users/runner/work/rust/rust/build/bootstrap/debug/bootstrap dist --stage 2
Build completed unsuccessfully in 0:39:20

[bors]

💔 Test failed - checks-actions

[pickfire]

Seemed like spurious error, need to retry.

[jonas-schievink]

@bors retry

[bors]

⌛ Testing commit 3ecaf57 with merge 41f0e13...

[bors]

☀️ Test successful - checks-actions
Approved by: jonas-schievink
Pushing 41f0e13 to master...