Fix missing space in comments (#5439)

src/basic/khash.h

@@ -28,7 +28,7 @@
 typedef struct khash khash;
 
 /* For plain hash functions. Hash functions commonly supported on today's kernels are: crc32c, crct10dif, crc32,
- * sha224, sha256, sha512, sha384, sha1, md5, md4, sha3-224, sha3-256, sha3-384, sha3-512, and more.*/
+ * sha224, sha256, sha512, sha384, sha1, md5, md4, sha3-224, sha3-256, sha3-384, sha3-512, and more. */
 int khash_new(khash **ret, const char *algorithm);
 
 /* For keyed hash functions. Hash functions commonly supported on today's kernels are: hmac(sha256), cmac(aes),

src/basic/proc-cmdline.c

@@ -154,7 +154,7 @@ int proc_cmdline_get_key(const char *key, unsigned flags, char **value) {
          *
          * c) The "value" parameter is NULL. In this case a search for the exact "key" parameter is performed.
          *
-         * In all three cases, > 0 is returned if the key is found, 0 if not.*/
+         * In all three cases, > 0 is returned if the key is found, 0 if not. */
 
         if (isempty(key))
                 return -EINVAL;

src/basic/process-util.c

@@ -311,7 +311,7 @@ int rename_process(const char name[]) {
 
         /* Third step, completely replace the argv[] array the kernel maintains for us. This requires privileges, but
          * has the advantage that the argv[] array is exactly what we want it to be, and not filled up with zeros at
-         * the end. This is the best option for changing /proc/self/cmdline.*/
+         * the end. This is the best option for changing /proc/self/cmdline. */
         if (mm_size < l+1) {
                 size_t nn_size;
                 char *nn;