Import missing ftplugin/fish.vim

vim/ftplugin/fish.vim

@@ -0,0 +1,39 @@
+setlocal comments=:#
+setlocal commentstring=#%s
+setlocal define=\\v^\\s*function>
+setlocal foldexpr=fish#Fold()
+setlocal formatoptions+=ron1
+setlocal formatoptions-=t
+setlocal include=\\v^\\s*\\.>
+setlocal iskeyword=@,48-57,-,_,.,/
+setlocal suffixesadd^=.fish
+
+" Use the 'j' format option when available.
+if v:version ># 703 || v:version ==# 703 && has('patch541')
+    setlocal formatoptions+=j
+endif
+
+if executable('fish_indent')
+    setlocal formatexpr=fish#Format()
+endif
+
+if executable('fish')
+    setlocal omnifunc=fish#Complete
+    for s:path in split(system("fish -c 'echo $fish_function_path'"))
+        execute 'setlocal path+='.s:path
+    endfor
+else
+    setlocal omnifunc=syntaxcomplete#Complete
+endif
+
+" Use the 'man' wrapper function in fish to include fish's man pages.
+" Have to use a script for this; 'fish -c man' would make the the man page an
+" argument to fish instead of man.
+execute 'setlocal keywordprg=fish\ '.fnameescape(expand('<sfile>:p:h:h').'/bin/man.fish')
+
+let b:match_words =
+            \ escape('<%(begin|function|if|switch|while|for)>:<end>', '<>%|)')
+
+let b:endwise_addition = 'end'
+let b:endwise_words = 'begin,function,if,switch,while,for'
+let b:endwise_syngroups = 'fishKeyword,fishConditional,fishRepeat'