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+NAME
+ loc - count number of lines of code
+
+SYNOPSIS
+ loc [file] ...
+
+DESCRIPTION
+ loc counts the number of lines of code for each specified
+ file. loc will treat each file as a C source code or C header
+ file. If file is -, the standard input is read.
+
+ If no file is specified, the standard input is read, and
+ the number of lines of code is output on the format
+
+ "%zu\n", <#lines of code>
+
+ If exactly one file is specified, its number of lines of
+ code is output on the format
+
+ "%zu\n", <#lines of code>
+
+ If more than one file is specified, each successfully
+ line counted file will have its of lines of code output on
+ the format
+
+ "%s:%*s%zu\n", <file>, <some positive integer>, "", <#lines of code>