Ignore blank lines when checking the logs for Hackage packages

My editor trims trailing blank lines, so it is not handy to edit the
expected failures manually.

expected-failures/Agda.txt

@@ -32,4 +32,3 @@ Formatting is not idempotent:
   before: "Prefix a = -- | The "
   after:  "Prefix a =\n  -- | Th"
 Please, consider reporting the bug.
-

expected-failures/aws.txt

@@ -7,4 +7,3 @@ Parsing of source code failed:
   parse error on input `{- | Let's make sure the queue was actually deleted and that the same number of queues exist at when
      | the program ends as when it started.
   -}'
-

expected-failures/brick.txt

@@ -3,4 +3,3 @@ Formatting is not idempotent:
   before: "t at i\n   in -- If t"
   after:  "t at i\n            -"
 Please, consider reporting the bug.
-

expected-failures/distributed-process.txt

@@ -5,4 +5,3 @@ Parsing of source code failed:
 Parsing of source code failed:
   benchmarks/Spawns.hs:5:1-6
   parse error on input `import'
-

expected-failures/esqueleto.txt

@@ -5,4 +5,3 @@ Parsing of source code failed:
 Parsing of source code failed:
   test/PostgreSQL/Test.hs:510:9-41
   parse error on input `-- | Check the result is not null'
-

expected-failures/fay.txt

@@ -16,4 +16,3 @@ Parsing of source code failed:
 Parsing of source code failed:
   examples/data.hs:9:1-6
   parse error on input `module'
-

expected-failures/idris.txt

@@ -99,4 +99,3 @@ Formatting is not idempotent:
   before: "s, rhs)) = -- apply "
   after:  "s, rhs)) =\n      -- "
 Please, consider reporting the bug.
-

expected-failures/intero.txt

@@ -3,4 +3,3 @@ Formatting is not idempotent:
   before: "Decl d2) = -- A bit "
   after:  "Decl d2) =\n  -- A bi"
 Please, consider reporting the bug.
-

expected-failures/leksah.txt

@@ -9,4 +9,3 @@ Formatting is not idempotent:
   before: ")\n  return [\n    {-i"
   after:  ")\n  return\n    [ {-i"
 Please, consider reporting the bug.
-

expected-failures/lens.txt

@@ -1,4 +1,3 @@
 Parsing of source code failed:
   src/Control/Exception/Lens.hs:180:13-37
   parse error on input `AllocationLimitExceeded__'
-

expected-failures/pandoc.txt

@@ -13,4 +13,3 @@ Formatting is not idempotent:
   before: "          -- w:p\n   "
   after:  "            -- w:p\n "
 Please, consider reporting the bug.
-

expected-failures/pipes.txt

@@ -1,4 +1,3 @@
 AST of input and AST of formatted code differ.
   at src/Pipes/Core.hs:(128,1)-(151,2)
 Please, consider reporting the bug.
-

expected-failures/purescript.txt

@@ -16,4 +16,3 @@ Perhaps you meant to use PatternSynonyms?
 Parsing of source code failed:
   src/Language/PureScript/Crash.hs:16:1-6
   parse error on input `import'
-

expected-failures/stack.txt

@@ -3,4 +3,3 @@ Formatting is not idempotent:
   before: "            <$> opti"
   after:  "          <$> option"
 Please, consider reporting the bug.
-

nix/ormolize/default.nix

@@ -44,7 +44,7 @@
           if [[ -s log.txt ]]; then exit 1; fi
         ''
         else ''
-          diff --color=always ${expectedFailures} log.txt
+          diff --ignore-blank-lines --color=always ${expectedFailures} log.txt
         '';
     installPhase = ''
       mkdir "$out"