Update src/lib/Hydra/Helper/Escape.pm: fewer ()s

Dependencies

• [2] 6BPELYYT Create a helper for dealing with nested attribute sets
• [3] S2KNQCPB NixExprs: extract the `escape` function and test it

Change contents

• replacement in src/lib/Hydra/Helper/Escape.pm at line 20
  [2.1188]→[2.1188:1281](∅→∅)
  − return join(".", map( { escapeString($_) } Hydra::Helper::AttributeSet::splitPath($s)));
  [2.1188]

  [2.1281]
  + return join ".", map { escapeString($_) } Hydra::Helper::AttributeSet::splitPath($s);