Fix newline match for symbols list

ST3

Example:

    [header1]
    h1 = h1

    [header2]

    h2 = h2

ACTUAL symbols matched:

    header1 h1
    header2
        h2

EXPECTED

    header1
        h1
    header2
        h2
Merge pull request #18 from gerardroche/fix-symbols-list

Fix newline match for symbols list