Documentation: add git-mergetool to the command list.

diff --git a/path.c b/path.c
index 94ddd7eafcb11313f00dac964de520c535d202ae..6395cf23098841c16d993ae7e86b2d8dcff01cd7 100644 (file)
--- a/path.c
+++ b/path.c
@@ -114,7 +114,7 @@ int validate_headref(const char *path)
        fd = open(path, O_RDONLY);
        if (fd < 0)
                return -1;
-       len = read(fd, buffer, sizeof(buffer)-1);
+       len = read_in_full(fd, buffer, sizeof(buffer)-1);
        close(fd);
 
        /*
@@ -252,7 +252,7 @@ char *enter_repo(char *path, int strict)
 
        if (access("objects", X_OK) == 0 && access("refs", X_OK) == 0 &&
            validate_headref("HEAD") == 0) {
-               putenv("GIT_DIR=.");
+               setenv("GIT_DIR", ".", 1);
                check_repository_format();
                return path;
        }