correct spelling mistakes

Closes #139

README.md

@@ -41,7 +41,7 @@ and verify the PGP signature on the distribution tarball:
     $ gpg --verify logrotate-3.11.0.tar.xz.asc logrotate-3.11.0.tar.xz
     
-If succesful your GPG output should look like this:
+If successful your GPG output should look like this:
     gpg: Signature made Fri 02 Dec 2016 08:30:39 AM EST
     gpg:                using RSA key 873DB37572A37B36

config.c

@@ -471,7 +471,7 @@ static void copyLogInfo(struct logInfo *to, struct logInfo *from)
 	to->oldDir = strdup(from->oldDir);
     to->criterium = from->criterium;
     to->weekday = from->weekday;
-    to->threshhold = from->threshhold;
+    to->threshold = from->threshold;
     to->minsize = from->minsize;
     to->maxsize = from->maxsize;
     to->rotateCount = from->rotateCount;
@@ -689,7 +689,7 @@ int readAllConfigPaths(const char **paths)
 		.numFiles = 0,
 		.oldDir = NULL,
 		.criterium = ROT_SIZE,
-		.threshhold = 1024 * 1024,
+		.threshold = 1024 * 1024,
 		.minsize = 0,
 		.maxsize = 0,
 		.rotateCount = 0,
@@ -1161,7 +1161,7 @@ static int readConfigFile(const char *configFile, struct logInfo *defConfig)
 						}
 						if (!strncmp(opt, "size", 4)) {
 						  newlog->criterium = ROT_SIZE;
-						  newlog->threshhold = size;
+						  newlog->threshold = size;
 						} else if (!strncmp(opt, "maxsize", 7)) {
 						  newlog->maxsize = size;
 						} else {
@@ -1189,7 +1189,7 @@ static int readConfigFile(const char *configFile, struct logInfo *defConfig)
 					newlog->criterium = ROT_HOURLY;
 				} else if (!strcmp(key, "daily")) {
 					newlog->criterium = ROT_DAYS;
-					newlog->threshhold = 1;
+					newlog->threshold = 1;
 				} else if (!strcmp(key, "monthly")) {
 					newlog->criterium = ROT_MONTHLY;
 				} else if (!strcmp(key, "weekly")) {
@@ -1480,7 +1480,7 @@ static int readConfigFile(const char *configFile, struct logInfo *defConfig)
 						newlog->compress_prog);
 					compresscmd_base = strdup(basename(newlog->compress_prog));
-					/* we check whether we changed the compress_cmd. In case we use the apropriate extension
+					/* we check whether we changed the compress_cmd. In case we use the appropriate extension
 					   as listed in compress_cmd_list */
 					for(i = 0; i < compress_cmd_list_size; i++) {
 						if (!strcmp(compress_cmd_list[i].cmd, compresscmd_base)) {

logrotate.8.in

@@ -602,7 +602,7 @@ is replaced. At startup, the taboo pattern list is empty.
 \fBweekly\fR [\fIweekday\fR]
 Log files are rotated once each \fIweekday\fR, or if the date is advanced by at
 least 7 days since the last rotation (while ignoring the exact time).  The
-\fIweekday\fR intepretation is following:  0 means Sunday, 1 means Monday, ...,
+\fIweekday\fR interpretation is following:  0 means Sunday, 1 means Monday, ...,
 6 means Saturday; the special value 7 means each 7 days, irrespectively of
 weekday.  Defaults to 0 if the \fIweekday\fR argument is omitted.

logrotate.c

@@ -1194,7 +1194,7 @@ static int findNeedRotating(struct logInfo *log, int logNum, int force)
         state->doRotate = 1;
     }
     else if (log->criterium == ROT_SIZE) {
-	state->doRotate = (sb.st_size >= log->threshhold);
+	state->doRotate = (sb.st_size >= log->threshold);
 	if (!state->doRotate) {
 	message(MESS_DEBUG, "  log does not need rotating "
 		"(log size is below the 'size' threshold)\n");
@@ -1942,7 +1942,7 @@ static int rotateLogSet(struct logInfo *log, int force)
         message(MESS_DEBUG, "hourly ");
         break;
         case ROT_DAYS:
-        message(MESS_DEBUG, "after %jd days ", (intmax_t)log->threshhold);
+        message(MESS_DEBUG, "after %jd days ", (intmax_t)log->threshold);
         break;
         case ROT_WEEKLY:
         message(MESS_DEBUG, "weekly ");
@@ -1954,7 +1954,7 @@ static int rotateLogSet(struct logInfo *log, int force)
         message(MESS_DEBUG, "yearly ");
         break;
         case ROT_SIZE:
-        message(MESS_DEBUG, "%jd bytes ", (intmax_t)log->threshhold);
+        message(MESS_DEBUG, "%jd bytes ", (intmax_t)log->threshold);
         break;
         default:
         message(MESS_DEBUG, "rotateLogSet() does not have case for: %d ", log->criterium);

logrotate.h

@@ -49,7 +49,7 @@ struct logInfo {
     enum { ROT_HOURLY, ROT_DAYS, ROT_WEEKLY, ROT_MONTHLY, ROT_YEARLY, ROT_SIZE
             } criterium;
     int weekday; /* used by ROT_WEEKLY only */
-    off_t threshhold;
+    off_t threshold;
     off_t maxsize;
     off_t minsize;
     int rotateCount;