Use raw string literals to format command usage messages

apps/bsatool/bsatool.cpp

@@ -31,19 +31,24 @@ struct Arguments
 
 bool parseOptions (int argc, char** argv, Arguments &info)
 {
-    bpo::options_description desc("Inspect and extract files from Bethesda BSA archives\n\n"
-            "Usages:\n"
-            "  bsatool list [-l] archivefile\n"
-            "      List the files presents in the input archive.\n\n"
-            "  bsatool extract [-f] archivefile [file_to_extract] [output_directory]\n"
-            "      Extract a file from the input archive.\n\n"
-            "  bsatool extractall archivefile [output_directory]\n"
-            "      Extract all files from the input archive.\n\n"
-            "  bsatool add [-a] archivefile file_to_add\n"
-            "      Add a file to the input archive.\n\n"
-            "  bsatool create [-c] archivefile\n"
-            "      Create an archive.\n\n"
-            "Allowed options");
+    bpo::options_description desc(R"(Inspect and extract files from Bethesda BSA archives
+
+Usages:
+  bsatool list [-l] archivefile\n
+      List the files presents in the input archive.
+
+  bsatool extract [-f] archivefile [file_to_extract] [output_directory]
+      Extract a file from the input archive.
+
+  bsatool extractall archivefile [output_directory]
+      Extract all files from the input archive.
+
+  bsatool add [-a] archivefile file_to_add
+      Add a file to the input archive.
+
+  bsatool create [-c] archivefile
+      Create an archive.
+Allowed options)");
 
     auto addOption = desc.add_options();
     addOption("help,h", "print help message.");

apps/esmtool/esmtool.cpp

@@ -48,7 +48,14 @@ struct ESMData
 
 bool parseOptions (int argc, char** argv, Arguments &info)
 {
-    bpo::options_description desc("Inspect and extract from Morrowind ES files (ESM, ESP, ESS)\nSyntax: esmtool [options] mode infile [outfile]\nAllowed modes:\n  dump\t Dumps all readable data from the input file.\n  clone\t Clones the input file to the output file.\n  comp\t Compares the given files.\n\nAllowed options");
+    bpo::options_description desc(R"(Inspect and extract from Morrowind ES files (ESM, ESP, ESS)
+Syntax: esmtool [options] mode infile [outfile]
+Allowed modes:
+  dump   Dumps all readable data from the input file.
+  clone  Clones the input file to the output file.
+  comp   Compares the given files.
+
+Allowed options)");
     auto addOption = desc.add_options();
     addOption("help,h", "print help message.");
     addOption("version,v", "print version information and quit.");

apps/essimporter/main.cpp

@@ -14,7 +14,8 @@ int main(int argc, char** argv)
 {
     try
     {
-        bpo::options_description desc("Syntax: openmw-essimporter <options> infile.ess outfile.omwsave\nAllowed options");
+        bpo::options_description desc(R"(Syntax: openmw-essimporter <options> infile.ess outfile.omwsave
+Allowed options)");
         bpo::positional_options_description p_desc;
         auto addOption = desc.add_options();
         addOption("help,h", "produce help message");

apps/niftest/niftest.cpp

@@ -70,11 +70,13 @@ void readVFS(std::unique_ptr<VFS::Archive>&& anArchive, const std::filesystem::p
 
 bool parseOptions (int argc, char** argv, std::vector<Files::MaybeQuotedPath> &files)
 {
-    bpo::options_description desc("Ensure that OpenMW can use the provided NIF and BSA files\n\n"
-        "Usages:\n"
-        "  niftool <nif files, BSA files, or directories>\n"
-        "      Scan the file or directories for nif errors.\n\n"
-        "Allowed options");
+    bpo::options_description desc(R"(Ensure that OpenMW can use the provided NIF and BSA files
+
+Usages:
+  niftool <nif files, BSA files, or directories>
+      Scan the file or directories for nif errors.
+
+Allowed options)");
     auto addOption = desc.add_options();
     addOption("help,h", "print help message.");
     addOption("input-file", bpo::value< Files::MaybeQuotedPathContainer >(), "input file");