Fix duct 0.13 compatibility

Signed-off-by: Robert-André Mauchin <zebob.m@gmail.com>

roff-duct-0.13.patch

@@ -0,0 +1,12 @@
+diff -up roff-0.1.0/tests/demo.rs.orig roff-0.1.0/tests/demo.rs
+--- roff-0.1.0/tests/demo.rs.orig	2018-04-18 23:09:27.000000000 +0200
++++ roff-0.1.0/tests/demo.rs	2019-09-27 12:45:29.912714021 +0200
+@@ -4,7 +4,7 @@ extern crate duct;
+ 
+ fn roff_to_ascii(input: &str) -> String {
+     duct::cmd("troff", &["-a", "-mman"])
+-        .input(input)
++        .stdin_bytes(input)
+         .stdout_capture()
+         .read()
+         .unwrap()

rust-roff.spec

@@ -16,6 +16,9 @@ Source:         %{crates_source}
 # Initial patched metadata
 # * Update duct to 0.13, pretty_assertions to 0.6, https://github.com/rust-cli/roff-rs/pull/8
 Patch0:         roff-fix-metadata.diff
+# Duct 0.13 compatibility:
+# Renamed input to stdin_bytes
+Patch1:         roff-duct-0.13.patch
 
 ExclusiveArch:  %{rust_arches}
 %if %{__cargo_skip_build}