qemuTestParseCapabilitiesArch: Free @binary

The variable is allocated, but never freed.

==119642== 29 bytes in 1 blocks are definitely lost in loss record 409 of 671
==119642==    at 0x483579F: malloc (vg_replace_malloc.c:309)
==119642==    by 0x5AB075F: __vasprintf_internal (in /lib64/libc-2.29.so)
==119642==    by 0x57C1A28: g_vasprintf (in /usr/lib64/libglib-2.0.so.0.6000.7)
==119642==    by 0x579A0CC: g_strdup_vprintf (in /usr/lib64/libglib-2.0.so.0.6000.7)
==119642==    by 0x4AE6D58: vir_g_strdup_printf (glibcompat.c:197)
==119642==    by 0x136EEE: qemuTestParseCapabilitiesArch (testutilsqemu.c:291)
==119642==    by 0x138506: testQemuInfoSetArgs (testutilsqemu.c:763)
==119642==    by 0x135FFF: mymain (qemuxml2argvtest.c:3093)
==119642==    by 0x13A60E: virTestMain (testutils.c:839)
==119642==    by 0x1368C2: main (qemuxml2argvtest.c:3121)

Fixes: 42b3e5b9Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

tests/testutilsqemu.c

@@ -288,8 +288,8 @@ qemuTestParseCapabilitiesArch(virArch arch,
                               const char *capsFile)
 {
     virQEMUCapsPtr qemuCaps = NULL;
-    char *binary = g_strdup_printf("/usr/bin/qemu-system-%s",
-                                   virArchToString(arch));
+    g_autofree char *binary = g_strdup_printf("/usr/bin/qemu-system-%s",
+                                              virArchToString(arch));
 
     if (!(qemuCaps = virQEMUCapsNewBinary(binary)) ||
         virQEMUCapsLoadCache(arch, qemuCaps, capsFile) < 0)