modules: readme files regenerated - siputils ... [skip ci]

src/modules/siputils/README

@@ -657,7 +657,7 @@ if (is_uri("$avp(i:705)") {
 if (is_tel_number("$rU")) {  # Test if R-URI user is telephone number
    ...
 }
-if (is_tel_number("+24242424") {
+if (is_tel_number("+24242424")) {
    ...
 }
 ...