title: Removing SOME line breaks from srt/txt file
body: <p>I have a text file which has numbered entries, a timecode and a transcript. I am trying to remove the line breaks in the transcript and leave the others. I'm trying to use grep or awk.</p>
  
  <p>File is like</p>
  
  <blockquote>
    <p>1<br>
    00:00:27,160 --> 00:00:29,054<br>
    Sometimes there's not much dialogue.<br>
    <br>
    2<br>
    00:00:30,100 --> 00:00:31,090<br>
    But other times there is quite a bit, <br>
    and it's formatted into two lines<br>
    <br>
    3<br>
    00:00:31,500 --> 00:00:33,700<br>
    I want to remove the line breaks only on<br>
    these long lines, leaving all other formatting.<br>
    <br>
    4<br>
    00:00:33,805 --> 00:00:37,285<br>
    So that all dialogue ends up being on a single<br>
    line no matter how long that line. <br></p>
  </blockquote>
  
  <p>Output would look like: </p>
  
  <blockquote>
    <p>1<br>
    00:00:27,160 --> 00:00:29,054<br>
    Sometimes there's not much dialogue.<br>
    <br>
    2<br>
    00:00:30,100 --> 00:00:31,090<br>
    But other times there is quite a bit,
    and it's formatted into two lines<br>
    <br>
    3<br>
    00:00:31,500 --> 00:00:33,700<br>
    I want to remove the line breaks only on
    these long lines, leaving all other formatting.<br>
    <br>
    4<br>
    00:00:33,805 --> 00:00:37,285<br>
    So that all dialogue ends up being on a single line no matter how long that line. <br></p>
  </blockquote>
  
  <p>thanks to all who have provided help</p>