tests: fix warning about suspicious concatenation of string literals

With clang (MacOS 11) We were getting:
  error: suspicious concatenation of string literals in an array initialization;
  note: place parentheses around the string literal to silence warning

So, do so.

Signed-off-by: Robin Getz <[email protected]>

Author: rgetz

tests/iio_attr.c

@@ -321,11 +321,11 @@ static const struct option options[] = {
 };
 
 static const char *options_descriptions[] = {
-	"-d [device] [attr] [value]\n"
+	("-d [device] [attr] [value]\n"
 		"\t\t\t\t-c [device] [channel] [attr] [value]\n"
 		"\t\t\t\t-B [device] [attr] [value]\n"
 		"\t\t\t\t-D [device] [attr] [value]\n"
-		"\t\t\t\t-C [attr]",
+		"\t\t\t\t-C [attr]"),
 	/* help */
 	"Ignore case distinctions.",
 	"Return result only.",

tests/iio_common.c

@@ -238,19 +238,19 @@ struct option * add_common_options(const struct option * longopts)
 static const char *common_options_descriptions[] = {
 	"Show this help and quit.",
 	"Use the XML backend with the provided XML file.",
-	"Use the context at the provided URI."
+	("Use the context at the provided URI."
 		"\n\t\t\teg: 'ip:192.168.2.1', 'ip:pluto.local', or 'ip:'"
 		"\n\t\t\t    'usb:1.2.3', or 'usb:'"
 		"\n\t\t\t    'serial:/dev/ttyUSB0,115200,8n1'"
-		"\n\t\t\t    'local:' (Linux only)",
-	"Scan for available backends."
+		"\n\t\t\t    'local:' (Linux only)"),
+	("Scan for available backends."
 		"\n\t\t\toptional arg of specific backend(s)"
-		"\n\t\t\t    'ip', 'usb' or 'ip:usb'",
-	"Scan for available contexts and if a single context is"
+		"\n\t\t\t    'ip', 'usb' or 'ip:usb'"),
+	("Scan for available contexts and if a single context is"
 		"\n\t\t\tavailable use it. <arg> filters backend(s)"
-		"\n\t\t\t    'ip', 'usb' or 'ip:usb:'",
-	"Context timeout in milliseconds."
-		"\n\t\t\t0 = no timeout (wait forever)",
+		"\n\t\t\t    'ip', 'usb' or 'ip:usb:'"),
+	("Context timeout in milliseconds."
+		"\n\t\t\t0 = no timeout (wait forever)"),
 };
 
 

tests/iio_genxml.c

@@ -33,9 +33,9 @@ static const struct option options[] = {
 };
 
 static const char *options_descriptions[] = {
-	"\t[-x <xml_file>]\n"
+	("\t[-x <xml_file>]\n"
 		"\t\t\t\t[-u <uri>]\n"
-		"\t\t\t\t[-n <hostname>]",
+		"\t\t\t\t[-n <hostname>]"),
 };
 
 int main(int argc, char **argv)

tests/iio_info.c

@@ -39,8 +39,8 @@ static const struct option options[] = {
 };
 
 static const char *options_descriptions[] = {
-	"[-x <xml_file>]\n"
-		"\t\t\t\t[-u <uri>]",
+	("[-x <xml_file>]\n"
+		"\t\t\t\t[-u <uri>]"),
 };
 
 static int dev_is_buffer_capable(const struct iio_device *dev)

tests/iio_stresstest.c

@@ -107,8 +107,8 @@ static const struct option options[] = {
 };
 
 static const char *options_descriptions[] = {
-	"[-n <hostname>] [-u <vid>:<pid>] [-t <trigger>] [-b <buffer-size>] [-s <samples>]"
-		"<iio_device> [<channel> ...]",
+	("[-n <hostname>] [-u <vid>:<pid>] [-t <trigger>] [-b <buffer-size>] [-s <samples>]"
+		"<iio_device> [<channel> ...]"),
 	"Show this help and quit.",
 	"Use the context at the provided URI.",
 	"Size of the capture buffer. Default is 256.",

tests/iio_writedev.c

@@ -56,16 +56,16 @@ static const struct option options[] = {
 };
 
 static const char *options_descriptions[] = {
-	"[-t <trigger>] "
+	("[-t <trigger>] "
 		"[-b <buffer-size>] [-s <samples>] "
-		"<iio_device> [<channel> ...]",
+		"<iio_device> [<channel> ...]"),
 	"Use the specified trigger.",
 	"Size of the transmit buffer. Default is 256.",
 	"Number of samples to write, 0 = infinite. Default is 0.",
 	"Scan for available contexts and if only one is available use it.",
 	"Use cyclic buffer mode.",
-	"Benchmark throughput."
-		"\n\t\t\tStatistics will be printed on the standard input.",
+	("Benchmark throughput."
+		"\n\t\t\tStatistics will be printed on the standard input."),
 };
 
 static struct iio_context *ctx;