Fix print_usage and man page mistakes

deps.sh

@@ -1,7 +1,6 @@
 #!/bin/sh
 
 UNAME=$(uname -s)
-ARCH=$(uname -m)
 
 if [ "$UNAME" = "Darwin" ]; then
     HAS_BREW=$(command -v brew > /dev/null 2>&1 && echo 1 || echo 0)

man/tldr.1

@@ -1,22 +1,20 @@
 .\" Manpage for tldr.
 .\" Contact [email protected] to correct errors or typos.
-.mso www.tmac
 .TH TLDR 1
 .SH NAME
 tldr \- A collection of simplified and community-driven man pages.
 .SH SYNOPSIS
 .B tldr
-[\fB\-v\fR]
-[\fIOPTION\fR]... \fISEARCH\fR
+[\fB\-v\fR] [\fB\-c\fR] [\fB\-u\fR] [\fIOPTION\fR]... [\fIPAGE\fR]
 .SH DESCRIPTION
 tldr is a collection of simplified and community-driven man pages, for commonly
 used commandline tools.
 .SH OPTIONS
 .TP
 .BR \-v
-verbose output
+verbose output (when used with \fB\-c\fR or \fB\-u\fR)
 .TP
-.BR \-\-version
+.BR \-v ", " \-\-version
 output version information and exit
 .TP
 .BR \-h ", " \-\-help
@@ -28,19 +26,30 @@ update local database and exit
 .BR \-c ", " \-\-clear-cache
 remove local database and exit
 .TP
-.BR \-p ", " \-\-platform=\fIPLATFORM\fR
+\fB\-p\fR, \fB\-\-platform\fR=\fIPLATFORM\fR
 select platform, supported are \fIlinux\fR / \fIosx\fR / \fIsunos\fR / \fIwindows\fR / \fIcommon\fR
 .TP
-.BR \-r ", " \-\-render=\fIPATH\fR
+.BR \-\-linux
+show command page for Linux
+.TP
+.BR \-\-osx
+show command page for OSX
+.TP
+.BR \-\-sunos
+show command page for SunOS
+.TP
+\fB\-r\fR, \fB\-\-render\fR=\fIPATH\fR
 render a local page for testing purposes
 .SH EXIT STATUS
 0 on success, any other positive value otherwise
 .SH SEE ALSO
 The source is available at:
-.URL "https://github.com/tldr-pages/tldr-cpp-client" "" ""
+.UR "https://github.com/tldr-pages/tldr-cpp-client"
+.UE .
 .SH REPORTING BUGS
-Report bugs through the Github repository:
-.URL "https://github.com/tldr-pages/tldr-cpp-client" "" "."
+Report bugs through the GitHub repository:
+.UR "https://github.com/tldr-pages/tldr-cpp-client"
+.UE .
 .SH COPYRIGHT
 The MIT License (MIT)
 

src/tldr.c

@@ -204,23 +204,23 @@ print_version(char const *arg)
 void
 print_usage(char const *arg)
 {
-    char const *out = "usage: %s [-v] [OPTION]... SEARCH\n\n";
+    char const *out = "usage: %s [-v] [-c] [-u] [OPTION]... [PAGE]\n\n";
 
     /* *INDENT-OFF* */
     fprintf(stdout, out, arg);
     fprintf(stdout, "available commands:\n");
-    fprintf(stdout, "    %-20s %-30s\n", "-v", "print verbose output");
-    fprintf(stdout, "    %-20s %-30s\n", "--version", "print version and exit");
-    fprintf(stdout, "    %-20s %-30s\n", "-h, --help", "print this help and exit");
-    fprintf(stdout, "    %-20s %-30s\n", "-u, --update", "update local database");
-    fprintf(stdout, "    %-20s %-30s\n", "-c, --clear-cache", "clear local database");
-    fprintf(stdout, "    %-20s %-30s\n", "-l, --list", "list all entries in the local database");
-    fprintf(stdout, "    %-20s %-30s\n", "-p, --platform=PLATFORM",
+    fprintf(stdout, "    %-23s %-30s\n", "-v", "verbose output (when used with -c or -u)");
+    fprintf(stdout, "    %-23s %-30s\n", "-v, --version", "print version and exit");
+    fprintf(stdout, "    %-23s %-30s\n", "-h, --help", "print this help and exit");
+    fprintf(stdout, "    %-23s %-30s\n", "-u, --update", "update local database");
+    fprintf(stdout, "    %-23s %-30s\n", "-c, --clear-cache", "clear local database");
+    fprintf(stdout, "    %-23s %-30s\n", "-l, --list", "list all entries in the local database");
+    fprintf(stdout, "    %-23s %-30s\n", "-p, --platform=PLATFORM",
             "select platform, supported are linux / osx / sunos / windows / common");
-    fprintf(stdout, "    %-20s %-30s\n", "--linux", "show command page for Linux");
-    fprintf(stdout, "    %-20s %-30s\n", "--osx", "show command page for OSX");
-    fprintf(stdout, "    %-20s %-30s\n", "--sunos", "show command page for SunOS");
-    fprintf(stdout, "    %-20s %-30s\n", "-r, --render=PATH",
+    fprintf(stdout, "    %-23s %-30s\n", "--linux", "show command page for Linux");
+    fprintf(stdout, "    %-23s %-30s\n", "--osx", "show command page for OSX");
+    fprintf(stdout, "    %-23s %-30s\n", "--sunos", "show command page for SunOS");
+    fprintf(stdout, "    %-23s %-30s\n", "-r, --render=PATH",
             "render a local page for testing purposes");
     /* *INDENT-ON* */
 }