Added ls.1 manual.

man/ls.1

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+        11/3/70                                                          LS (I)
+
+
+NAME              ls -- list contents of directory
+
+SYNOPSIS          ls [ -l ]
+
+DESCRIPTION       ls lists the contents of the current directory under
+                  control of one option:
+
+                     l     list in long format, giving i-number, mode, owner,
+                           size in words, and name of each file. (see stat
+			   for format of the mode). Numeric values are in octal.
+
+FILES             
+
+SEE ALSO          stat
+
+DIAGNOSTICS       No diagnostics
+
+BUGS              In a simulated environment, a filename larger than eight
+		  characters will cause ls to exit prematurely.
+
+OWNER             wkt