Defining nocorrect aliases only when ENABLE_CORRECTION is "true"

This commit move the nocorrect aliases definition so they're called
only when the user set ENABLE_CORRECTION to "true" to activate commands
autocorrection.

lib/correction.zsh

@@ -1,3 +1,4 @@
+if [[ "$ENABLE_CORRECTION" == "true" ]]; then
   alias man='nocorrect man'
   alias mv='nocorrect mv'
   alias mysql='nocorrect mysql'
@@ -8,6 +9,5 @@ alias ebuild='nocorrect ebuild'
   alias hpodder='nocorrect hpodder'
   alias sudo='nocorrect sudo'
 
-if [[ "$ENABLE_CORRECTION" == "true" ]]; then
   setopt correct_all
 fi