* apply bold escape codes only if output is going to a terminal/tty

pear/PEAR/Frontend/CLI.php

@@ -47,7 +47,9 @@ class PEAR_Frontend_CLI extends PEAR
     {
         parent::PEAR();
         $term = getenv('TERM'); //(cox) $_ENV is empty for me in 4.1.1
-        if ($term) {
+        if (function_exists('posix_isatty') && !posix_isatty(1)) {
+            // output is being redirected to a file or through a pipe
+        } elseif ($term) {
             // XXX can use ncurses extension here, if available
             if (preg_match('/^(xterm|vt220|linux)/', $term)) {
                 $this->term['bold'] = sprintf("%c%c%c%c", 27, 91, 49, 109);