fixup! rustup: add pointers to $PATH config in caveats

Co-authored-by: Mike McQuaid <[email protected]>

Author: rami3l

Diff for: Formula/r/rustup.rb

@@ -47,10 +47,9 @@ def caveats
       To initialize `rustup`, set a default toolchain:
         rustup default stable
 
-      If you also have `rust` installed, make sure that `rustup`'s proxies under
-      "$(brew --prefix rustup)/bin" come first in PATH compared to e.g.
-      "$(brew --prefix)/bin" to avoid conflicts. See the link below for more details:
-      <https://rust-lang.github.io/rustup/installation/already-installed-rust.html>
+      If you have `rust` installed, ensure you have "$(brew --prefix rustup)/bin" 
+      before "$(brew --prefix)/bin" in your $PATH:
+        #{Formatter.url("https://rust-lang.github.io/rustup/installation/already-installed-rust.html")}
     EOS
   end