[librsvg: 14/19] Avoid calling map(f) where f is a closure that returns the unit type

[Federico Mena Quintero <federico src gnome org>]

commit 4878c6eb7b362f8799bacbf63c8878904e2c0998
Author: Sven Neumann <sven svenfoo org>
Date:   Fri Aug 21 12:12:11 2020 +0200

    Avoid calling map(f) where f is a closure that returns the unit type
    
    See https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn

 rsvg_internals/src/gradient.rs | 4 +++-
 rsvg_internals/src/pattern.rs  | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/rsvg_internals/src/gradient.rs b/rsvg_internals/src/gradient.rs
index b133bf555..4118bff4c 100644
--- a/rsvg_internals/src/gradient.rs
+++ b/rsvg_internals/src/gradient.rs
@@ -776,7 +776,9 @@ impl Gradient {
     ) {
         let transform = transform.pre_transform(&self.transform);
 
-        transform.invert().map(|m| pattern.set_matrix(m.into()));
+        if let Some(m) = transform.invert() {
+            pattern.set_matrix(m.into())
+        }
         pattern.set_extend(cairo::Extend::from(self.spread));
         self.add_color_stops_to_pattern(pattern, opacity);
     }
diff --git a/rsvg_internals/src/pattern.rs b/rsvg_internals/src/pattern.rs
index 4cb4cec59..0cc8ceacb 100644
--- a/rsvg_internals/src/pattern.rs
+++ b/rsvg_internals/src/pattern.rs
@@ -373,7 +373,9 @@ impl AsPaintSource for ResolvedPattern {
         // Set the final surface as a Cairo pattern into the Cairo context
         let pattern = cairo::SurfacePattern::create(&surface);
 
-        affine.invert().map(|m| pattern.set_matrix(m.into()));
+        if let Some(m) = affine.invert() {
+            pattern.set_matrix(m.into())
+        }
         pattern.set_extend(cairo::Extend::Repeat);
         pattern.set_filter(cairo::Filter::Best);
         cr_save.set_source(&pattern);