Rename --debug to --log-level

Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>

doc/man/_options.txt

@@ -20,8 +20,8 @@
   with 1, and negative numbers indicate page numbers starting from the end
   of the document, -1 being the last page.
 
--l, --debug=level
-  Set log debug level (debug, info, warning, error)
+-l, --log-level=level
+  Set log level (debug, info, warning, error)
 
 -x, --synctex-editor-command=command
   Set the synctex editor command. Overrides the synctex-editor-command setting.

zathura/main.c

@@ -151,7 +151,7 @@ main(int argc, char* argv[])
     { "fork",                   '\0', 0, G_OPTION_ARG_NONE,     &forkback,       _("Fork into the background"),                          NULL },
     { "password",               'w',  0, G_OPTION_ARG_STRING,   &password,       _("Document password"),                                 "password" },
     { "page",                   'P',  0, G_OPTION_ARG_INT,      &page_number,    _("Page number to go to"),                              "number" },
-    { "debug",                  'l',  0, G_OPTION_ARG_STRING,   &loglevel,       _("Log level (debug, info, warning, error)"),           "level" },
+    { "log-level",              'l',  0, G_OPTION_ARG_STRING,   &loglevel,       _("Log level (debug, info, warning, error)"),           "level" },
     { "version",                'v',  0, G_OPTION_ARG_NONE,     &print_version,  _("Print version information"),                         NULL },
 #ifdef WITH_SYNCTEX
     { "synctex-editor-command", 'x',  0, G_OPTION_ARG_STRING,   &synctex_editor, _("Synctex editor (forwarded to the synctex command)"), "cmd" },