util: buffer: Encode URIs with upper case hex characters

rfc3986 uses uppercase characters so switch to using them as well.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/util/virbuffer.c

@@ -663,7 +663,7 @@ virBufferURIEncodeString(virBufferPtr buf, const char *str)
     int grow_size = 0;
     const char *p;
     unsigned char uc;
-    const char *hex = "0123456789abcdef";
+    const char *hex = "0123456789ABCDEF";
 
     if ((buf == NULL) || (str == NULL))
         return;

tests/viruritest.c

@@ -184,7 +184,7 @@ mymain(void)
         { NULL, NULL, false },
     };
     TEST_FULL("spice://[3ffe::104]:5900/?tlsSubject=C=XX,L=Testtown,O=Test%20Company,CN=tester.test",
-              "spice://[3ffe::104]:5900/?tlsSubject=C%3dXX%2cL%3dTesttown%2cO%3dTest%20Company%2cCN%3dtester.test",
+              "spice://[3ffe::104]:5900/?tlsSubject=C%3DXX%2CL%3DTesttown%2CO%3DTest%20Company%2CCN%3Dtester.test",
               "spice", "3ffe::104", 5900, "/", "tlsSubject=C=XX,L=Testtown,O=Test%20Company,CN=tester.test", NULL, NULL, spiceparams);
 
     virURIParam params1[] = {