Fix next line read with double quote blocks in one line

If there was this
FOO="bar"

Then the # comment block was attached to bar because FOO was seen as a
multiline block although the quotes are in one line only

test/.env

@@ -2,6 +2,7 @@
 SOMETHING=A
 OTHER="B IS B"
 Complex="A B \"D is F"
+# COMMENT
 HAS_SPACE= "ABC";
 FAILURE = ABC
 SIMPLEBOX= A B  C