Fix wrong message in configure help

configure

@@ -32,7 +32,8 @@ Dependency options:
                                                  executable (please follow
                                                  instructions in
                                                  src/geoip/README)
-  --disable-qtsingleapplication                  Disable use of libboost
+  --disable-qtsingleapplication                  Disable use of
+                                                 qtsingleapplication
   --with-qtsingleapplication=[system|shipped]     Use the shipped
                                                  qtsingleapplication library
                                                  or the system one
@@ -609,7 +610,7 @@ public:
 #line 1 "qtsingleapplication.qcm"
 /*
 -----BEGIN QCMOD-----
-name: libboost
+name: qtsingleapplication
 arg: with-qtsingleapplication=[system|shipped], Use the shipped qtsingleapplication library or the system one
 -----END QCMOD-----
 */

qcm/qtsingleapplication.qcm

@@ -1,6 +1,6 @@
 /*
 -----BEGIN QCMOD-----
-name: libboost
+name: qtsingleapplication
 arg: with-qtsingleapplication=[system|shipped], Use the shipped qtsingleapplication library or the system one
 -----END QCMOD-----
 */