1m4: unclosed quote:
2   quotes.m4 at line 55
31: normal
4quoted string
5[quoted STRING]
6normal STRING
7half quoted string
8going up to that string
9
102: kill quotes
11`quoted STRING'
12[quoted STRING]
13normal STRING
14`half quoted STRING
15going up to that STRING'
16
173: normal changed quote
18`quoted STRING'
19quoted string
20normal STRING
21`half quoted STRING
22going up to that STRING'
23
244: empty quotes, kill them too
25`quoted STRING'
26[quoted STRING]
27normal STRING
28`half quoted STRING
29going up to that STRING'
30
315: start quote only
32quoted string'[quoted STRING]
33normal STRING
34half quoted stringgoing up to that STRING'
35
366: normal quotes are back
37
38quoted string
39[quoted STRING]
40normal STRING
41half quoted string
42going up to that string
43
447: start quote+empty end quote
45`quoted STRING'
46quoted string]
47normal string
48`half quoted string
49going up to that string'
50