Fix secret length generation

abra

@@ -1633,9 +1633,9 @@ POWERED BY
 }
 
 sub_app_secret_generate(){
-  SECRET="$abra__secret_"
-  VERSION="$abra__version_"
-  LENGTH="$abra__length_"
+  local secret="$abra__secret_"
+  local version="$abra__version_"
+  local length="$abra__length_"
 
   if [ "$abra___all" == "true" ]; then
     # Note(decentral1se): we need to reset the flag here to avoid the infinite
@@ -1646,22 +1646,18 @@ sub_app_secret_generate(){
     return
   fi
 
-  if [[ -n "$LENGTH" ]]; then
-    if [ -z "$abra__cmd_" ]; then
-      require_binary pwgen
-      abra__cmd_="pwgen -s $LENGTH 1"
-    fi
+  if [[ -n "$length" ]]; then
+    require_binary pwgen
+    abra__cmd_="pwgen -s $length 1"
   else
-    if [ -z "$abra__cmd_" ]; then
-      require_binary pwqgen
-      abra__cmd_=pwqgen
-    fi
+    require_binary pwqgen
+    abra__cmd_=pwqgen
   fi
-  PWGEN=${abra__cmd_}
 
+  PWGEN=${abra__cmd_}
   debug "SECRET: $SECRET, VERSION $VERSION, PW $PWGEN, ALL $abra___all"
 
-  if [ -z "$SECRET" ] || [ -z "$VERSION" ] && [ "$abra___all" == "false" ]; then
+  if [ -z "$secret" ] || [ -z "$version" ] && [ "$abra___all" == "false" ]; then
     error "Required arguments missing"
   fi