Style and grammar fixes

- two spaces after a period
- wrong word

BUILDING

@@ -43,7 +43,7 @@ Platform-specific notes
   pass the relevant directories directly to ./configure:
       ./configure CPPFLAGS="-I/usr/local/opt/openssl/include" LDFLAGS="-L/usr/local/opt/openssl/lib"
 
-  Alternatively, you may with to add these lines to your $HOME/.profile file:
+  Alternatively, you may wish to add these lines to your $HOME/.profile file:
       export CPPFLAGS="-I/usr/local/opt/openssl/include $CPPFLAGS"
       export LDFLAGS="-L/usr/local/opt/openssl/lib $LDFLAGS"
   and then close & re-open your terminal window.

README.md

@@ -61,7 +61,7 @@ If `[outfile]` is not specified, the output is written to standard output.
   this value is used as an upper limit (if `scrypt` detects that it would take
   too long to decrypt the data, it will exit with an error message).
 * `-m maxmemfrac` instructs `scrypt` to use at most the specified fraction of
-  the available RAM for computing the derived encryption key. For encryption,
+  the available RAM for computing the derived encryption key.  For encryption,
   increasing this value might increase the security of the encrypted data,
   depending on the `maxtime` value; for decryption, this value is used as an
   upper limit and may `cause` scrypt to exit with an error.

libcperciva/crypto/crypto_entropy.c

@@ -41,7 +41,8 @@ static void generate(uint8_t *, size_t);
 
 #ifdef CPUSUPPORT_X86_RDRAND
 static void
-update_from_rdrand(void) {
+update_from_rdrand(void)
+{
 	unsigned int buf[8];
 
 	/* This is only *extra* entropy, so it's ok if it fails. */

tests/05-system-scrypt-encrypt-decrypt.sh

@@ -26,7 +26,7 @@ scenario_cmd() {
 	)
 
 	# Use the system scrypt to decrypt the file we just
-	# encrypted. Don't use valgrind for this.
+	# encrypted.  Don't use valgrind for this.
 	setup_check "system scrypt dec"
 	(
 		echo "${password}" | ${system_scrypt}			\