strdup.c is contributed by Bernard Alleysson <balleysson@bigfoot.com>. The patch for strcat.c and strstr.c is contributed by Dan Witte <dwitte@stanford.edu>. r=wtc. Modified Files: strcat.c strcpy.c strdup.c strstr.c git-svn-id: svn://10.0.0.236/trunk@155817 18797224-902f-48f8-a5cc-f745e15eee43