[librsvg] deps: bump regex to 1

[Igor Gnatenko <ignatenko src gnome org>]

commit 60f8afdfe6c5b667c015b2124cd46fd1d5bb07ee
Author: Igor Gnatenko <i gnatenko brain gmail com>
Date:   Sun Jun 24 11:31:13 2018 +0000

    deps: bump regex to 1

 rsvg_internals/Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/rsvg_internals/Cargo.toml b/rsvg_internals/Cargo.toml
index 1fc5c443..76c25402 100644
--- a/rsvg_internals/Cargo.toml
+++ b/rsvg_internals/Cargo.toml
@@ -22,7 +22,7 @@ phf_codegen = "0.7.21"
 [dependencies]
 libc = "0.2"
 downcast-rs = "^1.0.0"
-regex = "^0.2.1"
+regex = "1"
 itertools = "0.7.4"
 pango = "0.4"
 pangocairo = "0.5"