qemucaps2xmltest: fix the test to correspond to new domain formatting

Commit 2360fe5d updated formating of <domain> element but forgot to
update qemucaps2xmldata xml files.  In addition the test code was broken
too.  Update the xml files and return -1 if testCompareXMLToXML fails
together with indentation fix.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

tests/qemucaps2xmldata/all_1.6.0-1.xml

@@ -12,8 +12,7 @@
     <arch name='i686'>
       <wordsize>32</wordsize>
       <emulator>/usr/bin/qemu-system-i386</emulator>
-      <domain type='qemu'>
-      </domain>
+      <domain type='qemu'/>
       <domain type='kvm'>
         <emulator>/usr/bin/qemu-system-i386</emulator>
       </domain>

tests/qemucaps2xmldata/nodisksnapshot_1.6.0-1.xml

@@ -12,8 +12,7 @@
     <arch name='i686'>
       <wordsize>32</wordsize>
       <emulator>/usr/bin/qemu-system-i386</emulator>
-      <domain type='qemu'>
-      </domain>
+      <domain type='qemu'/>
       <domain type='kvm'>
         <emulator>/usr/bin/qemu-system-i386</emulator>
       </domain>

tests/qemucaps2xmltest.c

@@ -31,7 +31,7 @@
 static int
 testCompareXMLToXML(const char *inxmldata, const char *outxmldata)
 {
-    int ret = 1;
+    int ret = -1;
 
     if (STRNEQ(outxmldata, inxmldata)) {
         virtTestDifference(stderr, outxmldata, inxmldata);
@@ -143,7 +143,7 @@ testQemuCapsXML(const void *opaque)
     char *capsXml = NULL;
     virCapsPtr capsProvided = NULL;
 
-   if (virAsprintf(&xmlFile, "%s/qemucaps2xmldata/%s.xml",
+    if (virAsprintf(&xmlFile, "%s/qemucaps2xmldata/%s.xml",
                     abs_srcdir, data->base) < 0)
         goto cleanup;