doc: fix the 'revert a faulty merge' ASCII art tab spacing

The asciidoctor doc-tool stack does not always respect the 'tab = 8 spaces' rule expectation, particularly for the Git-for-Windows generated html pages. This follows on from the 'doc: fix merge-base ASCII art tab spacing' fix. Use just spaces within the block of the ascii art. All other *.txt ascii art containing three dashes has been checked. Asciidoctor correctly formats the other art blocks that do contain tabs. Signed-off-by: Philip Oakley <philipoakley@iee.org Signed-off-by: Junio C Hamano <gitster@pobox.com>

Philip Oakley committed Oct 24, 2016 at 22:54 UTC 6750f6269917969dbb191406c3ed31d5a75a9edd
1 file changed +8 -8
Documentation/howto/revert-a-faulty-merge.txt
+8 -8
@@ -30,7 +30,7 @@ The history immediately after the "revert of the merge" would look like
30 this:
31
32 ---o---o---o---M---x---x---W
33 - /
33 + /
34 ---A---B
35
36 where A and B are on the side development that was not so good, M is the
@@ -47,7 +47,7 @@ After the developers of the side branch fix their mistakes, the history
47 may look like this:
48
49 ---o---o---o---M---x---x---W---x
50 - /
50 + /
51 ---A---B-------------------C---D
52
53 where C and D are to fix what was broken in A and B, and you may already
@@ -81,7 +81,7 @@ In such a situation, you would want to first revert the previous revert,
81 which would make the history look like this:
82
83 ---o---o---o---M---x---x---W---x---Y
84 - /
84 + /
85 ---A---B-------------------C---D
86
87 where Y is the revert of W. Such a "revert of the revert" can be done
@@ -93,14 +93,14 @@ This history would (ignoring possible conflicts between what W and W..Y
93 changed) be equivalent to not having W or Y at all in the history:
94
95 ---o---o---o---M---x---x-------x----
96 - /
96 + /
97 ---A---B-------------------C---D
98
99 and merging the side branch again will not have conflict arising from an
100 earlier revert and revert of the revert.
101
102 ---o---o---o---M---x---x-------x-------*
103 - / /
103 + / /
104 ---A---B-------------------C---D
105
106 Of course the changes made in C and D still can conflict with what was
@@ -111,13 +111,13 @@ faulty A and B, and redone the changes on top of the updated mainline
111 after the revert, the history would have looked like this:
112
113 ---o---o---o---M---x---x---W---x---x
114 - / \
114 + / \
115 ---A---B A'--B'--C'
116
117 If you reverted the revert in such a case as in the previous example:
118
119 ---o---o---o---M---x---x---W---x---x---Y---*
120 - / \ /
120 + / \ /
121 ---A---B A'--B'--C'
122
123 where Y is the revert of W, A' and B' are rerolled A and B, and there may
@@ -129,7 +129,7 @@ lot of overlapping changes that result in conflicts. So do not do "revert
129 of revert" blindly without thinking..
130
131 ---o---o---o---M---x---x---W---x---x
132 - / \
132 + / \
133 ---A---B A'--B'--C'
134
135 In the history with rebased side branch, W (and M) are behind the merge