[librsvg: 41/43] allowed_url: use is_empty

[Federico Mena Quintero <federico src gnome org>]

commit 39632bec0ca067b529b55bddac6466ac2d059e61
Author: Paolo Borelli <pborelli gnome org>
Date:   Sun Oct 13 12:53:51 2019 +0200

    allowed_url: use is_empty

 rsvg_internals/src/allowed_url.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/rsvg_internals/src/allowed_url.rs b/rsvg_internals/src/allowed_url.rs
index 2ae4b490..16a3a330 100644
--- a/rsvg_internals/src/allowed_url.rs
+++ b/rsvg_internals/src/allowed_url.rs
@@ -224,11 +224,11 @@ impl Href {
         };
 
         match (uri, fragment) {
-            (None, Some(f)) if f.len() == 0 => Err(HrefError::ParseError),
+            (None, Some(f)) if f.is_empty() => Err(HrefError::ParseError),
             (None, Some(f)) => Ok(Href::WithFragment(Fragment(None, f.to_string()))),
-            (Some(u), _) if u.len() == 0 => Err(HrefError::ParseError),
+            (Some(u), _) if u.is_empty() => Err(HrefError::ParseError),
             (Some(u), None) => Ok(Href::PlainUrl(u.to_string())),
-            (Some(_u), Some(f)) if f.len() == 0 => Err(HrefError::ParseError),
+            (Some(_u), Some(f)) if f.is_empty() => Err(HrefError::ParseError),
             (Some(u), Some(f)) => Ok(Href::WithFragment(Fragment(
                 Some(u.to_string()),
                 f.to_string(),