In the (admittedly, concocted) case that PATH consists only of colons, we
would leak the duplicated string.

Signed-off-by: Johannes Schindelin <redacted>
---
 compat/mingw.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/compat/mingw.c b/compat/mingw.c
index 3fbfda5978b..fe0e3ccd248 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c

@@ -961,8 +961,10 @@ static char **get_path_split(void)
 			++n;
 		}
 	}
-	if (!n)
+	if (!n) {
+		free(envpath);
 		return NULL;
+	}
 
 	ALLOC_ARRAY(path, n + 1);
 	p = envpath;

-- 
2.12.2.windows.2.800.gede8f145e06