Linux/macOS: Make help text less confusing with regards to optional parameter of certain commands

the presence of '=' sign was not correct.

Author: idrassi

src/Main/UserInterface.cpp

@@ -1158,11 +1158,11 @@ const FileManager fileManagers[] = {
 					"--auto-mount=devices|favorites\n"
 					" Auto mount device-hosted or favorite volumes.\n"
 					"\n"
-					"--backup-headers[=VOLUME_PATH]\n"
+					"--backup-headers [VOLUME_PATH]\n"
 					" Backup volume headers to a file. All required options are requested from the\n"
 					" user.\n"
 					"\n"
-					"-c, --create[=VOLUME_PATH]\n"
+					"-c, --create [VOLUME_PATH]\n"
 					" Create a new volume. Most options are requested from the user if not specified\n"
 					" on command line. See also options --encryption, -k, --filesystem, --hash, -p,\n"
 					" --random-source, --quick, --size, --volume-type. Note that passing some of the\n"
@@ -1179,16 +1179,16 @@ const FileManager fileManagers[] = {
 					"  6) Unmount the outer volume.\n"
 					"  If at any step the hidden volume protection is triggered, start again from 1).\n"
 					"\n"
-					"--create-keyfile[=FILE_PATH]\n"
+					"--create-keyfile [FILE_PATH]\n"
 					" Create a new keyfile containing pseudo-random data.\n"
 					"\n"
-					"-C, --change[=VOLUME_PATH]\n"
+					"-C, --change [VOLUME_PATH]\n"
 					" Change a password and/or keyfile(s) of a volume. Most options are requested\n"
 					" from the user if not specified on command line. PKCS-5 PRF HMAC hash\n"
 					" algorithm can be changed with option --hash. See also options -k,\n"
 					" --new-keyfiles, --new-password, -p, --random-source.\n"
 					"\n"
-					"-u, --unmount[=MOUNTED_VOLUME]\n"
+					"-u, --unmount [MOUNTED_VOLUME]\n"
 					" Unmount a mounted volume. If MOUNTED_VOLUME is not specified, all\n"
 					" volumes are unmounted. See below for description of MOUNTED_VOLUME.\n"
 					"\n"
@@ -1201,7 +1201,7 @@ const FileManager fileManagers[] = {
 					"--import-token-keyfiles\n"
 					" Import keyfiles to a security token. See also option --token-lib.\n"
 					"\n"
-					"-l, --list[=MOUNTED_VOLUME]\n"
+					"-l, --list [MOUNTED_VOLUME]\n"
 					" Display a list of mounted volumes. If MOUNTED_VOLUME is not specified, all\n"
 					" volumes are listed. By default, the list contains only volume path, virtual\n"
 					" device, and mount point. A more detailed list can be enabled by verbose\n"
@@ -1217,11 +1217,11 @@ const FileManager fileManagers[] = {
                     "\n""--list-emvtoken-keyfiles\n"
                     " Display a list of all available emv token keyfiles. See also command\n"
                     "\n"
-					"--mount[=VOLUME_PATH]\n"
+					"--mount [VOLUME_PATH]\n"
 					" Mount a volume. Volume path and other options are requested from the user\n"
 					" if not specified on command line.\n"
 					"\n"
-					"--restore-headers[=VOLUME_PATH]\n"
+					"--restore-headers [VOLUME_PATH]\n"
 					" Restore volume headers from the embedded or an external backup. All required\n"
 					" options are requested from the user.\n"
 					"\n"
@@ -1234,7 +1234,7 @@ const FileManager fileManagers[] = {
 					"--version\n"
 					" Display program version.\n"
 					"\n"
-					"--volume-properties[=MOUNTED_VOLUME]\n"
+					"--volume-properties [MOUNTED_VOLUME]\n"
 					" Display properties of a mounted volume. See below for description of\n"
 					" MOUNTED_VOLUME.\n"
 					"\n"