attempt to fix nego.shallowarray memory leak

src/libgit2/remote.c

@@ -22,6 +22,7 @@
 #include "git2/types.h"
 #include "git2/oid.h"
 #include "git2/net.h"
+#include "transports/smart.h"
 
 #define CONFIG_URL_FMT "remote.%s.url"
 #define CONFIG_PUSHURL_FMT "remote.%s.pushurl"
@@ -2163,6 +2164,8 @@ void git_remote_free(git_remote *remote)
 	free_heads(&remote->local_heads);
 	git_vector_free(&remote->local_heads);
 
+	git_shallowarray_free((remote->nego).shallow_roots);
+
 	git_push_free(remote->push);
 	git__free(remote->url);
 	git__free(remote->pushurl);

src/libgit2/transports/smart.c

@@ -510,3 +510,9 @@ int git_shallowarray_remove(git_shallowarray *array, git_oid *oid)
 	/* no git_array_remove… meh */
 	return -1;
 }
+
+void git_shallowarray_free(git_shallowarray *array)
+{
+	git_array_clear(array->array);
+	git__free(array);
+}

src/libgit2/transports/smart.h

@@ -203,4 +203,6 @@ struct git_shallowarray {
 	git_array_oid_t array;
 };
 
+void git_shallowarray_free(git_shallowarray *array);
+
 #endif