glib: Fix some new clippy warnings

Author: sdroege

glib/src/convert.rs

@@ -115,6 +115,7 @@ unsafe impl Send for IConv {}
 
 impl IConv {
     #[doc(alias = "g_iconv_open")]
+    #[allow(clippy::unnecessary_lazy_evaluations)]
     pub fn new(to_codeset: &str, from_codeset: &str) -> Option<Self> {
         let iconv = unsafe {
             ffi::g_iconv_open(to_codeset.to_glib_none().0, from_codeset.to_glib_none().0)

glib/src/log.rs

@@ -417,7 +417,7 @@ impl<'a> LogField<'a> {
     /// Retrieves the the user data value from a field created with [`Self::new_user_data`].
     /// Returns `None` if the field was created with [`Self::new`].
     pub fn user_data(&self) -> Option<usize> {
-        (self.0.length == 0).then(|| self.0.value as usize)
+        (self.0.length == 0).then_some(self.0.value as usize)
     }
 }