lib/binman.rb in binman-3.3.1 vs lib/binman.rb in binman-3.3.2

@@ -52,11 +52,15 @@
 
       # try showing HTML manual page in a web browser in background
       require 'opener'
       Dir["#{man_path}/**/#{man_page}.*.html"].each do |man_html|
         # close streams to avoid interference with man(1) reader below
-        Opener.spawn man_html, 0 => :close, 1 => :close, 2 => :close
+        begin
+          Opener.spawn man_html, 0 => :close, 1 => :close, 2 => :close
+        rescue Errno::ENOENT
+          # designated opener program could not be found on this system
+        end
       end
 
       # try showing roff manual page in man(1) reader in foreground;
       # close STDERR to avoid interference with the fall back below
       return if system 'man', '-M', man_path, '-a', man_page, 2 => :close
@@ -94,10 +98,10 @@
   def require_md2man
     require 'rubygems' unless respond_to? :gem
     gem 'md2man', '~> 2.0' if respond_to? :gem
     require 'md2man/version'
   rescue LoadError
-    raise "Run `gem install md2man --version '~> 2.0'` for #{library.inspect}."
+    raise 'Run `gem install md2man --version "~> 2.0"` to use BinMan::conv().'
   end
 
 private
 
   # Returns contents of given source I/O, file name, or string.