Clarify several translatable messages.

util/grub-install.c

@@ -1182,7 +1182,7 @@ main (int argc, char *argv[])
 	  if (grub_strcmp (fs->name, "hfs") != 0
 	      && grub_strcmp (fs->name, "hfsplus") != 0
 	      && !is_guess)
-	    grub_util_error (_("%s is neither hfs nor hfsplus"),
+	    grub_util_error (_("filesystem on %s is neither HFS nor HFS+"),
 			     macppcdir);
 	  if (grub_strcmp (fs->name, "hfs") == 0
 	      || grub_strcmp (fs->name, "hfsplus") == 0)
@@ -1250,7 +1250,7 @@ main (int argc, char *argv[])
     }
 
   if (!config.is_cryptodisk_enabled && have_cryptodisk)
-    grub_util_error (_("attempt to install to cryptodisk without cryptodisk enabled. "
+    grub_util_error (_("attempt to install to encrypted disk without cryptodisk enabled. "
 		       "Set `%s' in file `%s'."), "GRUB_ENABLE_CRYPTODISK=1",
 		     grub_util_get_config_filename ());
 
@@ -1845,7 +1845,7 @@ main (int argc, char *argv[])
 
 	  /* Try to make this image bootable using the EFI Boot Manager, if available.  */
 	  if (!efi_distributor || efi_distributor[0] == '\0')
-	    grub_util_error ("%s", _("EFI distributor id isn't specified."));
+	    grub_util_error ("%s", _("EFI bootloader id isn't specified."));
 	  efifile_path = xasprintf ("\\EFI\\%s\\%s",
 				    efi_distributor,
 				    efi_file);

util/grub-mkimage.c

@@ -63,8 +63,8 @@ static struct argp_option options[] = {
    /* TRANSLATORS: "memdisk" here isn't an identifier, it can be translated.
     "embed" is a verb (command description).  "*/
    N_("embed FILE as a memdisk image\n"
-      "Implies `-p (memdisk)/boot/grub' but prefix can be overridden by "
-      "later options"), 0},
+      "Implies `-p (memdisk)/boot/grub' and overrides any prefix supplied previously,"
+      " but the prefix itself can be overridden by later options"), 0},
    /* TRANSLATORS: "embed" is a verb (command description).  "*/
   {"config",   'c', N_("FILE"), 0, N_("embed FILE as an early config"), 0},
    /* TRANSLATORS: "embed" is a verb (command description).  "*/

util/grub-mknetdir.c

@@ -80,7 +80,8 @@ argp_parser (int key, char *arg, struct argp_state *state)
 
 struct argp argp = {
   options, argp_parser, NULL,
-  "\v"N_("copies GRUB images into net_directory/subdir/target_cpu-platform."), 
+  "\v"N_("Prepares GRUB network boot images at net_directory/subdir "
+	 "assuming net_directory being TFTP root."), 
   NULL, grub_install_help_filter, NULL
 };
 

util/grub-mkrescue.c

@@ -212,7 +212,7 @@ struct argp argp = {
   options, argp_parser, N_("[OPTION] SOURCE..."),
   /* TRANSLATORS: it generates one single image which is bootable through any method. */
   N_("Make GRUB CD-ROM, disk, pendrive and floppy bootable image.")"\v"
-  N_("Generates a bootable rescue image with specified source files, source directories, or mkisofs options listed by the output of `%s'.\n\n"
+  N_("Generates a bootable CD/USB stick/floppy image with specified source files, source directories, or mkisofs options listed by the output of `%s'.\n\n"
      "Option -- switches to native xorriso command mode.\n\n"
      "Mail xorriso support requests to <bug-xorriso@gnu.org>."), 
   NULL, help_filter, NULL

util/grub-render-label.c

@@ -58,7 +58,10 @@ static struct argp_option options[] = {
   {"bgcolor",  'b', N_("COLOR"), 0,
    N_("use COLOR for background"), 0},
   {"text",  't', N_("STRING"), 0,
-   N_("set the label to render."), 0},
+  /* TRANSLATORS: The result is always stored to file and
+     never shown directly, so don't use "show" as synonym for render. Use "create" if
+     "render" doesn't translate directly.  */
+   N_("set the label to render"), 0},
   {"output",  'o', N_("FILE"), 0,
    N_("set output filename. Default is STDOUT"), 0},
   {"font",  'f', N_("FILE"), 0,
@@ -121,6 +124,10 @@ argp_parser (int key, char *arg, struct argp_state *state)
 
 static struct argp argp = {
   options, argp_parser, N_("[OPTIONS]"),
+  /* TRANSLATORS: This file takes a text and creates a graphical representation of it,
+     putting the result into .disk_label file. The result is always stored to file and
+     never shown directly, so don't use "show" as synonym for render. Use "create" if
+     "render" doesn't translate directly.  */
   N_("Render Apple .disk_label."),
   NULL, NULL, NULL
 };

util/grub-syslinux2cfg.c

@@ -60,14 +60,16 @@ static struct argp_option options[] = {
   {"root",  'r', N_("DIR"), 0,
    N_("root directory of the syslinux disk [default=/]."), 0},
   {"target-cwd",  'T', N_("DIR"), 0,
-   N_("current directory as it will be seen on runtime [default=$pwd]."), 0},
+   N_(
+      "current directory of the syslinux as it will be seen on runtime  [default is parent directory of input file]."
+), 0},
   {"cwd",  'c', N_("DIR"), 0,
-   N_("current directory of the syslinux disk [default=$pwd]."), 0},
+   N_("current directory of the syslinux [default is parent directory of input file]."), 0},
 
   {"output",  'o', N_("FILE"), 0, N_("write output to FILE [default=stdout]."), 0},
-  {"isolinux",     'i', 0,      0, N_("assume isolinux."), 0},
-  {"pxelinux",     'p', 0,      0, N_("assume pxelinux."), 0},
-  {"syslinux",     's', 0,      0, N_("assume syslinux."), 0},
+  {"isolinux",     'i', 0,      0, N_("assume input is an isolinux configuration file."), 0},
+  {"pxelinux",     'p', 0,      0, N_("assume input is a pxelinux configuration file."), 0},
+  {"syslinux",     's', 0,      0, N_("assume input is a syslinux configuration file."), 0},
   {"verbose",     'v', 0,      0, N_("print verbose messages."), 0},
   { 0, 0, 0, 0, 0, 0 }
 };