chore: fix comment bulk replace

plugins/rustup/rustup.plugin.zsh

@@ -3,7 +3,7 @@ print ${(%):-'Please update your .zshrc to use the `%Brust%b` plugin instead.%f'
 
 # TODO: 2021-12-28: remove this block
 # Handle $0 according to the standard:
-# # https://zdharma-continuum.github.io/Zsh-100-Commits-Club/Zsh-Plugin-Standard.html
+# https://zdharma-continuum.github.io/Zsh-100-Commits-Club/Zsh-Plugin-Standard.html
 0="${${ZERO:-${0:#$ZSH_ARGZERO}}:-${(%):-%N}}"
 0="${${(M)0:#/*}:-$PWD/$0}"
 # Remove old generated completion file