logcat: fortify help on filterspec
Bug: 19620794
Change-Id: I572ffb62d39d884d5102b0846a95b1a8216f3d41
diff --git a/logcat/logcat.cpp b/logcat/logcat.cpp
index 7e4eadd..be96fc4 100644
--- a/logcat/logcat.cpp
+++ b/logcat/logcat.cpp
@@ -215,7 +215,7 @@
fprintf(stderr, "options include:\n"
" -s Set default filter to silent.\n"
- " Like specifying filterspec '*:s'\n"
+ " Like specifying filterspec '*:S'\n"
" -f <filename> Log to file. Default to stdout\n"
" -r [<kbytes>] Rotate log every kbytes. (16 if unspecified). Requires -f\n"
" -n <count> Sets max number of rotated logs to <count>, default 4\n"
@@ -250,21 +250,19 @@
fprintf(stderr,"\nfilterspecs are a series of \n"
" <tag>[:priority]\n\n"
"where <tag> is a log component tag (or * for all) and priority is:\n"
- " V Verbose\n"
- " D Debug\n"
+ " V Verbose (default for <tag>)\n"
+ " D Debug (default for '*')\n"
" I Info\n"
" W Warn\n"
" E Error\n"
" F Fatal\n"
- " S Silent (supress all output)\n"
- "\n'*' means '*:d' and <tag> by itself means <tag>:v\n"
- "\nIf not specified on the commandline, filterspec is set from ANDROID_LOG_TAGS.\n"
- "If no filterspec is found, filter defaults to '*:I'\n"
- "\nIf not specified with -v, format is set from ANDROID_PRINTF_LOG\n"
+ " S Silent (suppress all output)\n"
+ "\n'*' by itself means '*:D' and <tag> by itself means <tag>:V.\n"
+ "If no '*' filterspec or -s on command line, all filter defaults to '*:V'.\n"
+ "eg: '*:S <tag>' prints only <tag>, '<tag>:S' suppresses all <tag> log messages.\n"
+ "\nIf not specified on the command line, filterspec is set from ANDROID_LOG_TAGS.\n"
+ "\nIf not specified with -v on command line, format is set from ANDROID_PRINTF_LOG\n"
"or defaults to \"threadtime\"\n\n");
-
-
-
}