fix #734 : --version should output to stdout

instead of stderr

diff --git a/programs/lz4cli.c b/programs/lz4cli.c
index 3619cd5..3b5d61e 100644 (file)
--- a/programs/lz4cli.c
+++ b/programs/lz4cli.c
@@ -67,6 +67,7 @@ static int g_lz4c_legacy_commands = 0;
 /*-************************************
 *  Macros
 ***************************************/
+#define DISPLAYOUT(...)        fprintf(stdout, __VA_ARGS__)
 #define DISPLAY(...)           fprintf(stderr, __VA_ARGS__)
 #define DISPLAYLEVEL(l, ...)   if (displayLevel>=l) { DISPLAY(__VA_ARGS__); }
 static unsigned displayLevel = 2;   /* 0 : no display ; 1: errors only ; 2 : downgradable normal ; 3 : non-downgradable normal; 4 : + information */
@@ -390,7 +391,7 @@ int main(int argc, const char** argv)
                 if (!strcmp(argument,  "--favor-decSpeed")) { LZ4IO_favorDecSpeed(prefs, 1); continue; }
                 if (!strcmp(argument,  "--verbose")) { displayLevel++; continue; }
                 if (!strcmp(argument,  "--quiet")) { if (displayLevel) displayLevel--; continue; }
-                if (!strcmp(argument,  "--version")) { DISPLAY(WELCOME_MESSAGE); return 0; }
+                if (!strcmp(argument,  "--version")) { DISPLAYOUT(WELCOME_MESSAGE); return 0; }
                 if (!strcmp(argument,  "--help")) { usage_advanced(exeName); goto _cleanup; }
                 if (!strcmp(argument,  "--keep")) { LZ4IO_setRemoveSrcFile(prefs, 0); continue; }   /* keep source file (default) */
                 if (!strcmp(argument,  "--rm")) { LZ4IO_setRemoveSrcFile(prefs, 1); continue; }
@@ -437,7 +438,7 @@ int main(int argc, const char** argv)
                 switch(argument[0])
                 {
                     /* Display help */
-                case 'V': DISPLAY(WELCOME_MESSAGE); goto _cleanup;   /* Version */
+                case 'V': DISPLAYOUT(WELCOME_MESSAGE); goto _cleanup;   /* Version */
                 case 'h': usage_advanced(exeName); goto _cleanup;
                 case 'H': usage_longhelp(exeName); goto _cleanup;