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BUG: CR marker ^M doesn't show up in '-' lines of diffs when the ending of the removed line is CR+LF




The CR marker ^M doesn't show up in '-' lines of diffs when the ending
of the removed line is CR+LF.
It shows up as expected in '-' lines when the ending of the removed line
is CR only.
It also always shows up as expected in '+' lines.

These are the diffs of the 6 possible line ending changes:

LF to CR+LF:
@@ -1,2 +1,2 @@
-aaa
+aaa^M
 bbb
 
CR+LF to LF:
@@ -1,2 +1,2 @@
-aaa            => BUG: should be -aaa^M
+aaa
 bbb

CR to CR+LF:
@@ -1 +1,2 @@
-aaa^Mbbb
+aaa^M
+bbb

CR+LF to CR:
@@ -1,2 +1 @@
-aaa            => BUG: should be -aaa^M
-bbb
+aaa^Mbbb

LF to CR:
@@ -1,2 +1 @@
-aaa
-bbb
+aaa^Mbbb

CR to LF:
@@ -1 +1,2 @@
-aaa^Mbbb
+aaa
+bbb

Tested with version 2.19.1.

Regards,
Frank Schäfer