env: sf: cosmetic: remove unnecessary space

Remove the unnecessary space before the 2 "done:" labels
in env_sf_save().

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>

env/sf.c

@@ -139,7 +139,7 @@ static int env_sf_save(void)
 
 	printf("Valid environment: %d\n", (int)gd->env_valid);
 
- done:
+done:
 	if (saved_buffer)
 		free(saved_buffer);
 
@@ -236,7 +236,7 @@ static int env_sf_save(void)
 	ret = 0;
 	puts("done\n");
 
- done:
+done:
 	if (saved_buffer)
 		free(saved_buffer);