build: Target luacheck HEAD.

https://github.com/mpeterv/luacheck/pull/81#issuecomment-261099606

> If you really want to use bleeding-edge version you should get the
> rockspec from master branch, not a fixed commit ...
> The correct way to install from a specific commit is cloning that
> commit and running "luarocks make" from project directory. The reason
> is that running "install" or "build" on an scm rockspec fetches
> sources from master but uses build description from the rockspec
> itself, which may be outdated.

4 files changed, 9 insertions, 9 deletions

diff --git a/test/unit/eval/decode_spec.lua b/test/unit/eval/decode_spec.lua
index d94d809c14..742b754d8a 100644
--- a/test/unit/eval/decode_spec.lua
+++ b/test/unit/eval/decode_spec.lua
@@ -32,7 +32,7 @@ describe('json_decode_string()', function()
   it('does not overflow when running with `n…`, `t…`, `f…`', function()
     local rettv = ffi.new('typval_T', {v_type=decode.VAR_UNKNOWN})
     decode.emsg_silent = 1
-    -- This will not crash, but if `len` argument will be ignored it will parse 
+    -- This will not crash, but if `len` argument will be ignored it will parse
     -- `null` as `null` and if not it will parse `null` as `n`.
     eq(0, decode.json_decode_string('null', 1, rettv))
     eq(decode.VAR_UNKNOWN, rettv.v_type)
diff --git a/test/unit/garray_spec.lua b/test/unit/garray_spec.lua
index 9694e3c427..422ef7b36a 100644
--- a/test/unit/garray_spec.lua
+++ b/test/unit/garray_spec.lua
@@ -198,8 +198,8 @@ describe('garray', function()
     local function new_and_grow(itemsize_, growsize_, req)
       local garr = new_garray()
       ga_init(garr, itemsize_, growsize_)
-      eq(0, ga_size(garr))         -- should be 0 at first     
-      eq(NULL, ga_data(garr))      -- should be NULL           
+      eq(0, ga_size(garr))         -- should be 0 at first
+      eq(NULL, ga_data(garr))      -- should be NULL
       ga_grow(garr, req)           -- add space for `req` items
       return garr
     end
@@ -209,7 +209,7 @@ describe('garray', function()
       growsize = 4
       local grow_by = growsize - 1
       local garr = new_and_grow(itemsize, growsize, grow_by)
-      neq(NULL, ga_data(garr))       -- data should be a ptr to memory        
+      neq(NULL, ga_data(garr))       -- data should be a ptr to memory
       eq(growsize, ga_maxlen(garr))  -- we requested LESS than growsize, so...
     end)
 
@@ -218,7 +218,7 @@ describe('garray', function()
       growsize = 4
       local grow_by = growsize + 1
       local garr = new_and_grow(itemsize, growsize, grow_by)
-      neq(NULL, ga_data(garr))       -- data should be a ptr to memory        
+      neq(NULL, ga_data(garr))       -- data should be a ptr to memory
       eq(grow_by, ga_maxlen(garr))   -- we requested MORE than growsize, so...
     end)
 
diff --git a/test/unit/os/fs_spec.lua b/test/unit/os/fs_spec.lua
index 7e7eddb6fc..5d889d6e33 100644
--- a/test/unit/os/fs_spec.lua
+++ b/test/unit/os/fs_spec.lua
@@ -206,8 +206,8 @@ describe('fs function', function()
 
       lfs.chdir(directory)
 
-      -- Rely on currentdir to resolve symlinks, if any. Testing against 
-      -- the absolute path taken from arg[0] may result in failure where 
+      -- Rely on currentdir to resolve symlinks, if any. Testing against
+      -- the absolute path taken from arg[0] may result in failure where
       -- the path has a symlink in it.
       local canonical = lfs.currentdir() .. '/' .. executable_name
       local expected = exe(canonical)
diff --git a/test/unit/strings_spec.lua b/test/unit/strings_spec.lua
index 0034670ee8..072701ea78 100644
--- a/test/unit/strings_spec.lua
+++ b/test/unit/strings_spec.lua
@@ -13,7 +13,7 @@ describe('vim_strsave_escaped()', function()
     local res = strings.vim_strsave_escaped(to_cstr(s), to_cstr(chars))
     local ret = ffi.string(res)
 
-    -- Explicitly free memory so we are sure it is allocated: if it was not it 
+    -- Explicitly free memory so we are sure it is allocated: if it was not it
     -- will crash.
     strings.xfree(res)
     return ret
@@ -44,7 +44,7 @@ describe('vim_strnsave_unquoted()', function()
   local vim_strnsave_unquoted = function(s, len)
     local res = strings.vim_strnsave_unquoted(to_cstr(s), len or #s)
     local ret = ffi.string(res)
-    -- Explicitly free memory so we are sure it is allocated: if it was not it 
+    -- Explicitly free memory so we are sure it is allocated: if it was not it
     -- will crash.
     strings.xfree(res)
     return ret