[PATCH 4/4] commit-graph: invert negated conditional

[Taylor Blau <me@ttaylorr.com>]

Now that we're using `commit_graph_generation_from_graph()` (which can
return a zero value) and we have a pure if/else instead of an else-if,
let's swap the arms of the if-statement.

This avoids an "if (!x) { foo(); } else { bar(); }" and replaces it with
the more readable "if (x) { bar(); } else { foo(); }".

Signed-off-by: Taylor Blau <me@ttaylorr.com>
---
 commit-graph.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/commit-graph.c b/commit-graph.c
index acca753ce8..b2cf9ed9d5 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -2681,16 +2681,16 @@ static int verify_one_commit_graph(struct repository *r,
 			graph_report(_("commit-graph parent list for commit %s terminates early"),
 				     oid_to_hex(&cur_oid));
 
-		if (!commit_graph_generation_from_graph(graph_commit)) {
-			if (generation_zero == GENERATION_NUMBER_EXISTS)
-				graph_report(_("commit-graph has generation number zero for commit %s, but non-zero elsewhere"),
-					     oid_to_hex(&cur_oid));
-			generation_zero = GENERATION_ZERO_EXISTS;
-		} else {
+		if (commit_graph_generation_from_graph(graph_commit)) {
 			if (generation_zero == GENERATION_ZERO_EXISTS)
 				graph_report(_("commit-graph has non-zero generation number for commit %s, but zero elsewhere"),
 					     oid_to_hex(&cur_oid));
 			generation_zero = GENERATION_NUMBER_EXISTS;
+		} else {
+			if (generation_zero == GENERATION_NUMBER_EXISTS)
+				graph_report(_("commit-graph has generation number zero for commit %s, but non-zero elsewhere"),
+					     oid_to_hex(&cur_oid));
+			generation_zero = GENERATION_ZERO_EXISTS;
 		}
 
 		if (generation_zero == GENERATION_ZERO_EXISTS)
-- 
2.42.0.rc0.29.g00abebef8e