[librsvg: 3/13] Remove redundant closures

[Federico Mena Quintero <federico src gnome org>]

commit e9ba989419f308fec9c96eb44b85d0a77aff3fcf
Author: Sven Neumann <sven svenfoo org>
Date:   Tue Aug 25 15:17:00 2020 +0200

    Remove redundant closures
    
    See https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure

 librsvg/c_api.rs        | 4 ++--
 librsvg/pixbuf_utils.rs | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/librsvg/c_api.rs b/librsvg/c_api.rs
index ffe6a209..2923c351 100644
--- a/librsvg/c_api.rs
+++ b/librsvg/c_api.rs
@@ -189,7 +189,7 @@ impl BaseUrl {
         self.inner
             .as_ref()
             .map(|b| b.cstring.as_ptr())
-            .unwrap_or_else(|| ptr::null())
+            .unwrap_or_else(ptr::null)
     }
 }
 
@@ -1496,7 +1496,7 @@ pub unsafe extern "C" fn rsvg_rust_handle_new_from_gfile_sync(
 
     let res = file
         .read(cancellable.as_ref())
-        .map_err(|e| LoadingError::from(e))
+        .map_err(LoadingError::from)
         .and_then(|stream| rhandle.read_stream_sync(&stream.upcast(), cancellable.as_ref()));
 
     match res {
diff --git a/librsvg/pixbuf_utils.rs b/librsvg/pixbuf_utils.rs
index d9f181c8..057dbee0 100644
--- a/librsvg/pixbuf_utils.rs
+++ b/librsvg/pixbuf_utils.rs
@@ -234,7 +234,7 @@ fn pixbuf_from_file_with_size_mode(
         let cancellable: Option<&gio::Cancellable> = None;
         let handle = match file
             .read(cancellable)
-            .map_err(|e| LoadingError::from(e))
+            .map_err(LoadingError::from)
             .and_then(|stream| Handle::from_stream(&load_options, stream.as_ref(), None))
         {
             Ok(handle) => handle,