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-rw-r--r--miscutils/update.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/miscutils/update.c b/miscutils/update.c
index 18b13e8c9..14f1d3c20 100644
--- a/miscutils/update.c
+++ b/miscutils/update.c
@@ -35,12 +35,15 @@ _syscall2(int, bdflush, int, func, int, data);
35#endif /* __GLIBC__ */ 35#endif /* __GLIBC__ */
36 36
37static char update_usage[] = 37static char update_usage[] =
38 "update [options]\n\n" 38 "update [options]\n"
39 "Periodically flushes filesystem buffers.\n\n" 39#ifndef BB_FEATURE_TRIVIAL_HELP
40 "\nPeriodically flushes filesystem buffers.\n\n"
40 "Options:\n" 41 "Options:\n"
41 "\t-S\tforce use of sync(2) instead of flushing\n" 42 "\t-S\tforce use of sync(2) instead of flushing\n"
42 "\t-s SECS\tcall sync this often (default 30)\n" 43 "\t-s SECS\tcall sync this often (default 30)\n"
43 "\t-f SECS\tflush some buffers this often (default 5)\n"; 44 "\t-f SECS\tflush some buffers this often (default 5)\n"
45#endif
46 ;
44 47
45static unsigned int sync_duration = 30; 48static unsigned int sync_duration = 30;
46static unsigned int flush_duration = 5; 49static unsigned int flush_duration = 5;