[librsvg/rustification] marker.rs: Use variables whose purpose is more clear

[Federico Mena Quintero <federico src gnome org>]

commit fcdac7669e18882f63cad611b4f86c728ba5a548
Author: Federico Mena Quintero <federico gnome org>
Date:   Tue Oct 25 13:13:13 2016 -0500

    marker.rs: Use variables whose purpose is more clear

 rust/src/marker.rs |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/rust/src/marker.rs b/rust/src/marker.rs
index c373733..9061105 100644
--- a/rust/src/marker.rs
+++ b/rust/src/marker.rs
@@ -78,8 +78,8 @@ fn path_to_segments (path: cairo::Path) -> Vec<Segment> {
 
                 let seg = Segment {
                     is_degenerate: true,
-                    p1x: x,
-                    p1y: y,
+                    p1x: cur_x,
+                    p1y: cur_y,
                     p2x: 0.0, p2y: 0.0, p3x: 0.0, p3y: 0.0, p4x: 0.0, p4y: 0.0 // these are set in the next 
iteration
                 };