Fix parsing of commits that have no newlines in the message.

src/commit.c

@@ -176,14 +176,15 @@ int commit_parse_buffer(git_commit *commit, void *data, size_t len, unsigned int
 		char *line_end;
 		size_t message_len = buffer_end - buffer;
 
-		/* Short message */
+		/* Long message */
 		message_len = buffer_end - buffer;
 		commit->message = git__malloc(message_len + 1);
 		memcpy(commit->message, buffer, message_len);
 		commit->message[message_len] = 0;
 
-		/* Long message */
-		line_end = memchr(buffer, '\n', buffer_end - buffer);
+		/* Short message */
+		if((line_end = memchr(buffer, '\n', buffer_end - buffer)) == NULL)
+			line_end = buffer_end;
 		message_len = line_end - buffer;
 
 		commit->message_short = git__malloc(message_len + 1);

tests/t0401-parse.c

@@ -71,11 +71,19 @@ committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
 \n\
 a simple commit which works\n",
 
-/* simple commit, 1 parents */
+/* simple commit, no parent, no newline in message */
 "tree 1810dff58d8a660512d4832e740f692884338ccd\n\
 author Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
 committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
 \n\
+a simple commit which works",
+
+/* simple commit, 1 parent */
+"tree 1810dff58d8a660512d4832e740f692884338ccd\n\
+parent e90810b8df3e80c413d903f631643c716887138d\n\
+author Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+\n\
 a simple commit which works\n",
 };
 
@@ -210,7 +218,7 @@ BEGIN_TEST(parse_person_test)
 		"author ");
 
 #undef TEST_PERSON_PASS
-#undef TESt_PERSON_FAIL
+#undef TEST_PERSON_FAIL
 
 END_TEST
 
@@ -252,6 +260,16 @@ BEGIN_TEST(parse_buffer_test)
 					commit,
 					test_commits_working[i],
 					strlen(test_commits_working[i]),
+					0x0)
+				);
+
+		memset(commit, 0x0, sizeof(git_commit));
+		commit->object.repo = repo;
+
+		must_pass(commit_parse_buffer(
+					commit,
+					test_commits_working[i],
+					strlen(test_commits_working[i]),
 					0x1)
 				);