reduce indentation

filters/postmaster@localhost

@@ -47,49 +47,46 @@ if ($DISPATCH)
       KEY="$ALIAS $SUFFIX"
       EXISTS=gdbmfetch($KEY)
    }
-   if (gdbmstore(tolower($FROM), $KEY) == 0 && gdbmstore($KEY, tolower($FROM)) == 0)
+   if (gdbmstore(tolower($FROM), $KEY) || gdbmstore($KEY, tolower($FROM)))
    {
       gdbmclose
-      SLIST="$LISTDIR/alist"
-      gdbmopen($SLIST, "C")
-      if (/^X-AUTH:\s(.+)\s*$/)
-      {
-         AUTH=$MATCH1
-      }
-      else
-      {
-         AUTH="NONE"
-      }
-      if (gdbmstore(tolower($FROM), "$AUTH"))
-      {
-         gdbmclose
-         EXITCODE=$FATAL
-         cc "|$DEBUGMAIL 'auth-store-fail'"
-         exit
-      }
-      if ($AUTH eq "admin")
-      {
-         SUBSCRIBE="SUBSCRIBE"
-      }
-      else
-      {
-         SUBSCRIBE="UNSUBSCRIBE"
-      }
-      system "$SUBUNSUB '$SUBSCRIBE' '$KEY' '$FROM'"
-      if ($EXITCODE)
-      {
-         cc "|$DEBUGMAIL 'auth-sub-fail'"
-         exit
-      }
-      gdbmclose
-      RESP=$SIGNUPRESP
-      to "|$MAILBOT"
+      EXITCODE=$FATAL
+      cc "|$DEBUGMAIL '$MLSIT-store-fail'"
+      exit
+   }
+   gdbmclose
+   SLIST="$LISTDIR/alist"
+   gdbmopen($SLIST, "C")
+   if (/^X-AUTH:\s(.+)\s*$/)
+   {
+      AUTH=$MATCH1
    }
    else
+   {
+      AUTH="NONE"
+   }
+   if (gdbmstore(tolower($FROM), "$AUTH"))
    {
       gdbmclose
       EXITCODE=$FATAL
-      cc "|$DEBUGMAIL '$MLSIT-store-fail'"
+      cc "|$DEBUGMAIL 'auth-store-fail'"
+      exit
+   }
+   gdbmclose
+   if ($AUTH eq "admin")
+   {
+      SUBSCRIBE="SUBSCRIBE"
+   }
+   else
+   {
+      SUBSCRIBE="UNSUBSCRIBE"
+   }
+   system "$SUBUNSUB '$SUBSCRIBE' '$KEY' '$FROM'"
+   if ($EXITCODE)
+   {
+      cc "|$DEBUGMAIL 'auth-sub-fail'"
       exit
    }
+   RESP=$SIGNUPRESP
+   to "|$MAILBOT"
 }