Description:
------------
When pprofp is installed in /usr/bin or other directory and called to process a file in the current directory, it fails to open it. For example, if a trace file pprof.12345.0 is in /var/log/php-apd and pprofp is installed to /usr/bin, when we:

cd /var/log/php-apd
pprofp -a pprof.12345.0

yelds an error.

See a proposed patch to correct the problem. Note - apd version is 0.9.2.

Reproduce code:
---------------
--- ./pprofp.orig       2004-09-27 23:12:29.000000000 -0400                                  
+++ ./pprofp    2004-12-31 01:35:21.000000000 -0500                                          
@@ -16,9 +16,11 @@                                                                           
 }                                                                                           
 ($dataFile = $retval[1][0]) || usage();                                                     
 if(($DATA = fopen($dataFile, "r")) == FALSE) {                                              
+if(($DATA = fopen($_ENV['PWD']."/".$dataFile, "r")) == FALSE) {                             
     print "Failed to open $dataFile for reading\n";                                         
     exit(1);                                                                                
 }                                                                                           
+}                                                                                           
                                                                                             
 $cfg = array();                                                                             
 parse_info('HEADER', $DATA, $cfg);